4722
This commit is contained in:
Kartik Agaram
parent
0939de6373
commit
6f37250dd9
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@ -62,12 +62,12 @@ if ('onhashchange' in window) {
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<span id="L7" class="LineNr"> 7 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span>
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<span id="L8" class="LineNr"> 8 </span>
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<span id="L9" class="LineNr"> 9 </span><span class="Comment"># main: (manual test if this is the last file loaded)</span>
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<span id="L10" class="LineNr">10 </span> <span class="Comment"># check-ints-equal(34, 34) == 1</span>
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<span id="L10" class="LineNr">10 </span> <span class="Comment"># check-ints-equal(34, 34)</span>
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<span id="L11" class="LineNr">11 </span> 68/push "error in check-ints-equal"/imm32
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<span id="L12" class="LineNr">12 </span> 68/push 35/imm32
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<span id="L12" class="LineNr">12 </span> 68/push 34/imm32
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<span id="L13" class="LineNr">13 </span> 68/push 34/imm32
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<span id="L14" class="LineNr">14 </span> e8/call check-ints-equal/disp32
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<span id="L15" class="LineNr">15 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
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<span id="L15" class="LineNr">15 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
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<span id="L16" class="LineNr">16 </span> <span class="Comment"># syscall(exit, 0)</span>
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<span id="L17" class="LineNr">17 </span> bb/copy-to-EBX 0/imm32
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<span id="L18" class="LineNr">18 </span> b8/copy-to-EAX 1/imm32
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@ -132,241 +132,251 @@ if ('onhashchange' in window) {
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<span id="L77" class="LineNr"> 77 </span> 52/push-EDX
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<span id="L78" class="LineNr"> 78 </span> 53/push-EBX
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<span id="L79" class="LineNr"> 79 </span> 56/push-ESI
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<span id="L80" class="LineNr"> 80 </span> <span class="Comment"># EAX = t</span>
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<span id="L81" class="LineNr"> 81 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 0/r32/EAX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EAX</span>
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<span id="L82" class="LineNr"> 82 </span> <span class="Comment"># EBX = line</span>
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<span id="L83" class="LineNr"> 83 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to EBX</span>
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<span id="L84" class="LineNr"> 84 </span> <span class="Comment"># append line to t.data from t.write</span>
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<span id="L85" class="LineNr"> 85 </span> <span class="Comment">#</span>
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<span id="L86" class="LineNr"> 86 </span> <span class="Comment"># pseudocode:</span>
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<span id="L87" class="LineNr"> 87 </span> <span class="Comment"># destend = &t.data[t.length]</span>
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<span id="L88" class="LineNr"> 88 </span> <span class="Comment"># oldw = t.write</span>
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<span id="L89" class="LineNr"> 89 </span> <span class="Comment"># if line.length == 0 return</span>
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<span id="L90" class="LineNr"> 90 </span> <span class="Comment"># t.write += line.length + 1 # for newline</span>
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<span id="L91" class="LineNr"> 91 </span> <span class="Comment"># dest = &t.data[oldw]</span>
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<span id="L92" class="LineNr"> 92 </span> <span class="Comment"># srcend = &line.data[line.length]</span>
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<span id="L93" class="LineNr"> 93 </span> <span class="Comment"># src = &line.data[0]</span>
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<span id="L94" class="LineNr"> 94 </span> <span class="Comment"># while true:</span>
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<span id="L95" class="LineNr"> 95 </span> <span class="Comment"># if src >= srcend break</span>
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<span id="L96" class="LineNr"> 96 </span> <span class="Comment"># if dest >= destend break # for now silently ignore filled up trace buffer</span>
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<span id="L97" class="LineNr"> 97 </span> <span class="Comment"># *dest = *src</span>
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<span id="L98" class="LineNr"> 98 </span> <span class="Comment"># ++src</span>
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<span id="L99" class="LineNr"> 99 </span> <span class="Comment"># ++dest</span>
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<span id="L100" class="LineNr">100 </span> <span class="Comment"># if dest >= destend return</span>
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<span id="L101" class="LineNr">101 </span> <span class="Comment"># *dest = 10/newline</span>
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<span id="L102" class="LineNr">102 </span> <span class="Comment">#</span>
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<span id="L103" class="LineNr">103 </span> <span class="Comment"># key registers to set up for the loop:</span>
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<span id="L104" class="LineNr">104 </span> <span class="Comment"># EAX/dest, ECX/destend, EBX/src, ESI/srcend</span>
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<span id="L105" class="LineNr">105 </span> <span class="Comment"># we save EDX for byte operations (has to be one of the first 4 registers)</span>
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<span id="L106" class="LineNr">106 </span> <span class="Comment">#</span>
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<span id="L107" class="LineNr">107 </span> <span class="Comment"># register setup before the loop:</span>
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<span id="L108" class="LineNr">108 </span> <span class="Comment"># EAX = *(EBP+8) # t</span>
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<span id="L109" class="LineNr">109 </span> <span class="Comment"># EBX = *(EBP+12) # line</span>
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<span id="L110" class="LineNr">110 </span> <span class="Comment"># ECX = *(EAX+8) # t.length</span>
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<span id="L111" class="LineNr">111 </span> <span class="Comment"># ECX = EAX+12+ECX # destend = &t.data[t.length]</span>
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<span id="L112" class="LineNr">112 </span> <span class="Comment"># ESI = *EAX # oldw = t.write</span>
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<span id="L113" class="LineNr">113 </span> <span class="Comment"># EDX = *EBX # line.length</span>
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<span id="L114" class="LineNr">114 </span> <span class="Comment"># *EAX = *EAX + EDX # update t.write (allowed to go past t.length)</span>
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<span id="L115" class="LineNr">115 </span> <span class="Comment"># # do this here just because it's convenient</span>
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<span id="L116" class="LineNr">116 </span> <span class="Comment"># ++ *EAX # for the newline</span>
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<span id="L117" class="LineNr">117 </span> <span class="Comment"># EAX = EAX+12+ESI # dest = &t.data[oldw]</span>
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<span id="L118" class="LineNr">118 </span> <span class="Comment"># ESI = EBX+4+EDX # srcend = &line.data[line.length]</span>
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<span id="L119" class="LineNr">119 </span> <span class="Comment"># EBX = EBX+4 # src = &line.data[0]</span>
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<span id="L120" class="LineNr">120 </span> <span class="Comment">#</span>
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<span id="L121" class="LineNr">121 </span> <span class="Comment"># EAX/t and EBX/line are already initialized</span>
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<span id="L122" class="LineNr">122 </span> <span class="Comment"># ECX = t.length</span>
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<span id="L123" class="LineNr">123 </span> 8b/copy 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EAX+8) to ECX</span>
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<span id="L124" class="LineNr">124 </span> <span class="Comment"># ECX/destend = &t.data[t.length]</span>
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<span id="L125" class="LineNr">125 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX <span class="Delimiter"> . </span> 1/r32/ECX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EAX+ECX+12 to ECX</span>
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<span id="L126" class="LineNr">126 </span> <span class="Comment"># ESI/oldw = t.write</span>
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<span id="L127" class="LineNr">127 </span> 8b/copy 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 6/r32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EAX to ESI</span>
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<span id="L128" class="LineNr">128 </span> <span class="Comment"># EDX = line.length</span>
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<span id="L129" class="LineNr">129 </span> 8b/copy 0/mod/indirect 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EBX to EDX</span>
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<span id="L130" class="LineNr">130 </span> <span class="Comment"># if EDX == 0 return</span>
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<span id="L131" class="LineNr">131 </span> 81 7/subop/compare 3/mod/direct 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare EDX</span>
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<span id="L132" class="LineNr">132 </span> 74/jump-if-equal $trace:end/disp8
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<span id="L133" class="LineNr">133 </span> <span class="Comment"># t.write += line.length</span>
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<span id="L134" class="LineNr">134 </span> 01/add 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># add EDX to *EAX</span>
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<span id="L135" class="LineNr">135 </span> <span class="Comment"># t.write++ (for the newline we'll append below)</span>
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<span id="L136" class="LineNr">136 </span> 81 0/subop/add 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/imm32 <span class="Comment"># add to *EAX</span>
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<span id="L137" class="LineNr">137 </span> <span class="Comment"># EAX/dest = &t.data[oldw]</span>
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<span id="L138" class="LineNr">138 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 6/index/ESI <span class="Delimiter"> . </span> 0/r32/EAX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EAX+ESI+12 to EAX</span>
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<span id="L139" class="LineNr">139 </span> <span class="Comment"># ESI/srcend = &line.data[line.length]</span>
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<span id="L140" class="LineNr">140 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 3/base/EBX 2/index/EDX <span class="Delimiter"> . </span> 6/r32/ESI 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EBX+EDX+4 to ESI</span>
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<span id="L141" class="LineNr">141 </span> <span class="Comment"># EBX/src = &line.data[0]</span>
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<span id="L142" class="LineNr">142 </span> 81 0/subop/add 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to EBX</span>
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<span id="L143" class="LineNr">143 </span> <span class="Comment"># while (true)</span>
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<span id="L144" class="LineNr">144 </span>$trace:loop:
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<span id="L145" class="LineNr">145 </span> <span class="Comment"># if EBX/src >= ESI/srcend break</span>
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<span id="L146" class="LineNr">146 </span> 39/compare 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 6/r32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EBX with ESI</span>
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<span id="L147" class="LineNr">147 </span> 7d/jump-if-greater-or-equal $trace:break/disp8
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<span id="L148" class="LineNr">148 </span> <span class="Comment"># if EAX/dest >= ECX/destend break (for now silently ignore filled up trace buffer)</span>
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<span id="L149" class="LineNr">149 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with ECX</span>
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<span id="L150" class="LineNr">150 </span> 7d/jump-if-greater-or-equal $trace:break/disp8
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<span id="L151" class="LineNr">151 </span> <span class="Comment"># copy one byte</span>
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<span id="L152" class="LineNr">152 </span> 8a/copy-byte 0/mod/indirect 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/DL <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EBX to DL</span>
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<span id="L153" class="LineNr">153 </span> 88/copy-byte 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/DL <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at DL to *EAX</span>
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<span id="L154" class="LineNr">154 </span> <span class="Comment"># updates</span>
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<span id="L155" class="LineNr">155 </span> 40/increment-EAX
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<span id="L156" class="LineNr">156 </span> 43/increment-EBX
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<span id="L157" class="LineNr">157 </span> eb/jump $trace:loop/disp8
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<span id="L158" class="LineNr">158 </span>$trace:break:
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<span id="L159" class="LineNr">159 </span> <span class="Comment"># finally, append a newline</span>
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<span id="L160" class="LineNr">160 </span> <span class="Comment"># if EAX/dest >= ECX/destend return</span>
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<span id="L161" class="LineNr">161 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with ECX</span>
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<span id="L162" class="LineNr">162 </span> 7d/jump-if-greater-or-equal $trace:end/disp8
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<span id="L163" class="LineNr">163 </span> <span class="Comment"># append</span>
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<span id="L164" class="LineNr">164 </span> ba/copy-to-EDX 0x0a/imm32
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<span id="L165" class="LineNr">165 </span> 88/copy-byte 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/DL <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at DL to *EAX</span>
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<span id="L166" class="LineNr">166 </span>$trace:end:
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<span id="L167" class="LineNr">167 </span> <span class="Comment"># restore registers</span>
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<span id="L168" class="LineNr">168 </span> 5e/pop-to-ESI
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<span id="L169" class="LineNr">169 </span> 5b/pop-to-EBX
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<span id="L170" class="LineNr">170 </span> 5a/pop-to-EDX
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<span id="L171" class="LineNr">171 </span> 59/pop-to-ECX
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<span id="L172" class="LineNr">172 </span> 58/pop-to-EAX
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<span id="L173" class="LineNr">173 </span> <span class="Comment"># epilog</span>
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<span id="L174" class="LineNr">174 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span>
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<span id="L175" class="LineNr">175 </span> 5d/pop-to-EBP
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<span id="L176" class="LineNr">176 </span> c3/return
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<span id="L177" class="LineNr">177 </span>
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<span id="L178" class="LineNr">178 </span>clear-trace-stream: <span class="Comment"># t : (address trace-stream)</span>
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<span id="L179" class="LineNr">179 </span> <span class="Comment"># prolog</span>
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<span id="L180" class="LineNr">180 </span> 55/push-EBP
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<span id="L181" class="LineNr">181 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span>
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<span id="L182" class="LineNr">182 </span> <span class="Comment"># save registers</span>
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<span id="L183" class="LineNr">183 </span> 50/push-EAX
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<span id="L184" class="LineNr">184 </span> 51/push-ECX
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<span id="L185" class="LineNr">185 </span> <span class="Comment"># EAX = t</span>
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<span id="L186" class="LineNr">186 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 0/r32/EAX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EAX</span>
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<span id="L187" class="LineNr">187 </span> <span class="Comment"># ECX = t.length</span>
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<span id="L188" class="LineNr">188 </span> 8b/copy 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EAX+8) to ECX</span>
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<span id="L189" class="LineNr">189 </span> <span class="Comment"># ECX = &t.data[t.length]</span>
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<span id="L190" class="LineNr">190 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX <span class="Delimiter"> . </span> 1/r32/ECX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EAX+ECX+12 to ECX</span>
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<span id="L191" class="LineNr">191 </span> <span class="Comment"># t.write = 0</span>
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<span id="L192" class="LineNr">192 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to *EAX</span>
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<span id="L193" class="LineNr">193 </span> <span class="Comment"># t.read = 0</span>
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<span id="L194" class="LineNr">194 </span> c7/copy 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/disp8 0/imm32 <span class="Comment"># copy to *(EAX+4)</span>
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<span id="L195" class="LineNr">195 </span> <span class="Comment"># EAX = t.data</span>
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<span id="L196" class="LineNr">196 </span> 81 0/subop/add 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to EAX</span>
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<span id="L197" class="LineNr">197 </span> <span class="Comment"># while (true)</span>
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<span id="L198" class="LineNr">198 </span>$clear-trace-stream:loop:
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<span id="L199" class="LineNr">199 </span> <span class="Comment"># if EAX >= ECX break</span>
|
||||
<span id="L200" class="LineNr">200 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with ECX</span>
|
||||
<span id="L201" class="LineNr">201 </span> 7d/jump-if-greater-or-equal $clear-trace-stream:end/disp8
|
||||
<span id="L202" class="LineNr">202 </span> <span class="Comment"># *EAX = 0</span>
|
||||
<span id="L203" class="LineNr">203 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to *EAX</span>
|
||||
<span id="L204" class="LineNr">204 </span> <span class="Comment"># EAX += 4</span>
|
||||
<span id="L205" class="LineNr">205 </span> 81 0/subop/add 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to EAX</span>
|
||||
<span id="L206" class="LineNr">206 </span> eb/jump $clear-trace-stream:loop/disp8
|
||||
<span id="L207" class="LineNr">207 </span>$clear-trace-stream:end:
|
||||
<span id="L208" class="LineNr">208 </span> <span class="Comment"># restore registers</span>
|
||||
<span id="L209" class="LineNr">209 </span> 59/pop-to-ECX
|
||||
<span id="L210" class="LineNr">210 </span> 58/pop-to-EAX
|
||||
<span id="L211" class="LineNr">211 </span> <span class="Comment"># epilog</span>
|
||||
<span id="L212" class="LineNr">212 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span>
|
||||
<span id="L213" class="LineNr">213 </span> 5d/pop-to-EBP
|
||||
<span id="L214" class="LineNr">214 </span> c3/return
|
||||
<span id="L215" class="LineNr">215 </span>
|
||||
<span id="L216" class="LineNr">216 </span>test-trace-single:
|
||||
<span id="L217" class="LineNr">217 </span> <span class="Comment"># clear-trace-stream(Test-trace-stream)</span>
|
||||
<span id="L218" class="LineNr">218 </span> <span class="Comment"># push args</span>
|
||||
<span id="L219" class="LineNr">219 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L220" class="LineNr">220 </span> <span class="Comment"># call</span>
|
||||
<span id="L221" class="LineNr">221 </span> e8/call clear-trace-stream/disp32
|
||||
<span id="L222" class="LineNr">222 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L223" class="LineNr">223 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L224" class="LineNr">224 </span> <span class="Comment"># trace(Test-trace-stream, "Ab")</span>
|
||||
<span id="L225" class="LineNr">225 </span> <span class="Comment"># push args</span>
|
||||
<span id="L226" class="LineNr">226 </span> 68/push "Ab"/imm32
|
||||
<span id="L227" class="LineNr">227 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L228" class="LineNr">228 </span> <span class="Comment"># call</span>
|
||||
<span id="L229" class="LineNr">229 </span> e8/call trace/disp32
|
||||
<span id="L230" class="LineNr">230 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L231" class="LineNr">231 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L232" class="LineNr">232 </span> <span class="Comment"># check-ints-equal(*Test-trace-stream.data, 41/A 62/b 0a/newline 00, msg)</span>
|
||||
<span id="L233" class="LineNr">233 </span> <span class="Comment"># push args</span>
|
||||
<span id="L234" class="LineNr">234 </span> 68/push "F - test-trace-single"/imm32
|
||||
<span id="L235" class="LineNr">235 </span> 68/push 0x0a6241/imm32/Ab-newline
|
||||
<span id="L236" class="LineNr">236 </span> <span class="Comment"># push *Test-trace-stream.data</span>
|
||||
<span id="L237" class="LineNr">237 </span> b8/copy-to-EAX Test-trace-stream/imm32
|
||||
<span id="L238" class="LineNr">238 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EAX+12)</span>
|
||||
<span id="L239" class="LineNr">239 </span> <span class="Comment"># call</span>
|
||||
<span id="L240" class="LineNr">240 </span> e8/call check-ints-equal/disp32
|
||||
<span id="L241" class="LineNr">241 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L242" class="LineNr">242 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L243" class="LineNr">243 </span> <span class="Comment"># end</span>
|
||||
<span id="L244" class="LineNr">244 </span> c3/return
|
||||
<span id="L245" class="LineNr">245 </span>
|
||||
<span id="L246" class="LineNr">246 </span>test-trace-appends:
|
||||
<span id="L247" class="LineNr">247 </span> <span class="Comment"># clear-trace-stream(Test-trace-stream)</span>
|
||||
<span id="L248" class="LineNr">248 </span> <span class="Comment"># push args</span>
|
||||
<span id="L249" class="LineNr">249 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L250" class="LineNr">250 </span> <span class="Comment"># call</span>
|
||||
<span id="L251" class="LineNr">251 </span> e8/call clear-trace-stream/disp32
|
||||
<span id="L252" class="LineNr">252 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L253" class="LineNr">253 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L254" class="LineNr">254 </span> <span class="Comment"># trace(Test-trace-stream, "C")</span>
|
||||
<span id="L255" class="LineNr">255 </span> <span class="Comment"># push args</span>
|
||||
<span id="L256" class="LineNr">256 </span> 68/push "C"/imm32
|
||||
<span id="L257" class="LineNr">257 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L258" class="LineNr">258 </span> <span class="Comment"># call</span>
|
||||
<span id="L259" class="LineNr">259 </span> e8/call trace/disp32
|
||||
<span id="L260" class="LineNr">260 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L261" class="LineNr">261 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L262" class="LineNr">262 </span> <span class="Comment"># trace(Test-trace-stream, "D")</span>
|
||||
<span id="L263" class="LineNr">263 </span> <span class="Comment"># push args</span>
|
||||
<span id="L264" class="LineNr">264 </span> 68/push "D"/imm32
|
||||
<span id="L265" class="LineNr">265 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L266" class="LineNr">266 </span> <span class="Comment"># call</span>
|
||||
<span id="L267" class="LineNr">267 </span> e8/call trace/disp32
|
||||
<span id="L268" class="LineNr">268 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L269" class="LineNr">269 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L270" class="LineNr">270 </span> <span class="Comment"># check-ints-equal(*Test-trace-stream.data, 43/C 0a/newline 44/D 0a/newline, msg)</span>
|
||||
<span id="L271" class="LineNr">271 </span> <span class="Comment"># push args</span>
|
||||
<span id="L272" class="LineNr">272 </span> 68/push "F - test-trace-appends"/imm32
|
||||
<span id="L273" class="LineNr">273 </span> 68/push 0x0a440a43/imm32/C-newline-D-newline
|
||||
<span id="L274" class="LineNr">274 </span> <span class="Comment"># push *Test-trace-stream.data</span>
|
||||
<span id="L275" class="LineNr">275 </span> b8/copy-to-EAX Test-trace-stream/imm32
|
||||
<span id="L276" class="LineNr">276 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EAX+12)</span>
|
||||
<span id="L277" class="LineNr">277 </span> <span class="Comment"># call</span>
|
||||
<span id="L278" class="LineNr">278 </span> e8/call check-ints-equal/disp32
|
||||
<span id="L279" class="LineNr">279 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L280" class="LineNr">280 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L281" class="LineNr">281 </span> <span class="Comment"># end</span>
|
||||
<span id="L282" class="LineNr">282 </span> c3/return
|
||||
<span id="L283" class="LineNr">283 </span>
|
||||
<span id="L284" class="LineNr">284 </span>test-trace-empty-line:
|
||||
<span id="L285" class="LineNr">285 </span> <span class="Comment"># clear-trace-stream(Test-trace-stream)</span>
|
||||
<span id="L286" class="LineNr">286 </span> <span class="Comment"># push args</span>
|
||||
<span id="L287" class="LineNr">287 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L288" class="LineNr">288 </span> <span class="Comment"># call</span>
|
||||
<span id="L289" class="LineNr">289 </span> e8/call clear-trace-stream/disp32
|
||||
<span id="L290" class="LineNr">290 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L291" class="LineNr">291 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L292" class="LineNr">292 </span> <span class="Comment"># trace(Test-trace-stream, "")</span>
|
||||
<span id="L293" class="LineNr">293 </span> <span class="Comment"># push args</span>
|
||||
<span id="L294" class="LineNr">294 </span> 68/push ""/imm32
|
||||
<span id="L295" class="LineNr">295 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L296" class="LineNr">296 </span> <span class="Comment"># call</span>
|
||||
<span id="L297" class="LineNr">297 </span> e8/call trace/disp32
|
||||
<span id="L298" class="LineNr">298 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L299" class="LineNr">299 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L300" class="LineNr">300 </span> <span class="Comment"># check-ints-equal(*Test-trace-stream.data, 0, msg)</span>
|
||||
<span id="L301" class="LineNr">301 </span> <span class="Comment"># push args</span>
|
||||
<span id="L302" class="LineNr">302 </span> 68/push "F - test-trace-empty-line"/imm32
|
||||
<span id="L303" class="LineNr">303 </span> 68/push 0/imm32
|
||||
<span id="L304" class="LineNr">304 </span> <span class="Comment"># push *Test-trace-stream.data</span>
|
||||
<span id="L305" class="LineNr">305 </span> b8/copy-to-EAX Test-trace-stream/imm32
|
||||
<span id="L306" class="LineNr">306 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EAX+12)</span>
|
||||
<span id="L307" class="LineNr">307 </span> <span class="Comment"># call</span>
|
||||
<span id="L308" class="LineNr">308 </span> e8/call check-ints-equal/disp32
|
||||
<span id="L309" class="LineNr">309 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L310" class="LineNr">310 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L311" class="LineNr">311 </span> <span class="Comment"># end</span>
|
||||
<span id="L312" class="LineNr">312 </span> c3/return
|
||||
<span id="L313" class="LineNr">313 </span>
|
||||
<span id="L314" class="LineNr">314 </span><span class="Comment"># vim:nowrap:textwidth=0</span>
|
||||
<span id="L80" class="LineNr"> 80 </span> 57/push-EDI
|
||||
<span id="L81" class="LineNr"> 81 </span> <span class="Comment"># EDI = t</span>
|
||||
<span id="L82" class="LineNr"> 82 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 7/r32/EDI 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EDI</span>
|
||||
<span id="L83" class="LineNr"> 83 </span> <span class="Comment"># ESI = line</span>
|
||||
<span id="L84" class="LineNr"> 84 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 6/r32/ESI 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to ESI</span>
|
||||
<span id="L85" class="LineNr"> 85 </span> <span class="Comment"># ECX = t.write</span>
|
||||
<span id="L86" class="LineNr"> 86 </span> 8b/copy 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDI to ECX</span>
|
||||
<span id="L87" class="LineNr"> 87 </span> <span class="Comment"># EDX = t.length</span>
|
||||
<span id="L88" class="LineNr"> 88 </span> 8b/copy 1/mod/*+disp8 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EDI+8) to EDX</span>
|
||||
<span id="L89" class="LineNr"> 89 </span> <span class="Comment"># EAX = _append(&t.data[t.write], &t.data[t.length], line)</span>
|
||||
<span id="L90" class="LineNr"> 90 </span> <span class="Comment"># push line</span>
|
||||
<span id="L91" class="LineNr"> 91 </span> 56/push-ESI
|
||||
<span id="L92" class="LineNr"> 92 </span> <span class="Comment"># push &t.data[t.length]</span>
|
||||
<span id="L93" class="LineNr"> 93 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 7/base/EDI 2/index/EDX <span class="Delimiter"> . </span> 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EDI+EDX+12 to EBX</span>
|
||||
<span id="L94" class="LineNr"> 94 </span> 53/push-EBX
|
||||
<span id="L95" class="LineNr"> 95 </span> <span class="Comment"># push &t.data[t.write]</span>
|
||||
<span id="L96" class="LineNr"> 96 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 7/base/EDI 1/index/ECX <span class="Delimiter"> . </span> 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EDI+ECX+12 to EBX</span>
|
||||
<span id="L97" class="LineNr"> 97 </span> 53/push-EBX
|
||||
<span id="L98" class="LineNr"> 98 </span> <span class="Comment"># call</span>
|
||||
<span id="L99" class="LineNr"> 99 </span> e8/call _append/disp32
|
||||
<span id="L100" class="LineNr">100 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L101" class="LineNr">101 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L102" class="LineNr">102 </span> <span class="Comment"># if EAX == 0 return</span>
|
||||
<span id="L103" class="LineNr">103 </span> 81 7/subop/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare EDX</span>
|
||||
<span id="L104" class="LineNr">104 </span> 74/jump-if-equal $trace:end/disp8
|
||||
<span id="L105" class="LineNr">105 </span> <span class="Comment"># t.write += EAX</span>
|
||||
<span id="L106" class="LineNr">106 </span> 01/add 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># add EAX to *EDI</span>
|
||||
<span id="L107" class="LineNr">107 </span> <span class="Comment"># refresh ECX = t.write</span>
|
||||
<span id="L108" class="LineNr">108 </span> 8b/copy 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EDI to ECX</span>
|
||||
<span id="L109" class="LineNr">109 </span> <span class="Comment"># EAX = _append(&t.data[t.write], &t.data[t.length], line)</span>
|
||||
<span id="L110" class="LineNr">110 </span> <span class="Comment"># push line</span>
|
||||
<span id="L111" class="LineNr">111 </span> 68/push Newline/imm32
|
||||
<span id="L112" class="LineNr">112 </span> <span class="Comment"># push &t.data[t.length]</span>
|
||||
<span id="L113" class="LineNr">113 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 7/base/EDI 2/index/EDX <span class="Delimiter"> . </span> 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EDI+EDX+12 to EBX</span>
|
||||
<span id="L114" class="LineNr">114 </span> 53/push-EBX
|
||||
<span id="L115" class="LineNr">115 </span> <span class="Comment"># push &t.data[t.write]</span>
|
||||
<span id="L116" class="LineNr">116 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 7/base/EDI 1/index/ECX <span class="Delimiter"> . </span> 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EDI+ECX+12 to EBX</span>
|
||||
<span id="L117" class="LineNr">117 </span> 53/push-EBX
|
||||
<span id="L118" class="LineNr">118 </span> <span class="Comment"># call</span>
|
||||
<span id="L119" class="LineNr">119 </span> e8/call _append/disp32
|
||||
<span id="L120" class="LineNr">120 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L121" class="LineNr">121 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L122" class="LineNr">122 </span> <span class="Comment"># t.write += EAX</span>
|
||||
<span id="L123" class="LineNr">123 </span> 01/add 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># add EAX to *EDI</span>
|
||||
<span id="L124" class="LineNr">124 </span>$trace:end:
|
||||
<span id="L125" class="LineNr">125 </span> <span class="Comment"># restore registers</span>
|
||||
<span id="L126" class="LineNr">126 </span> 5f/pop-to-EDI
|
||||
<span id="L127" class="LineNr">127 </span> 5e/pop-to-ESI
|
||||
<span id="L128" class="LineNr">128 </span> 5b/pop-to-EBX
|
||||
<span id="L129" class="LineNr">129 </span> 5a/pop-to-EDX
|
||||
<span id="L130" class="LineNr">130 </span> 59/pop-to-ECX
|
||||
<span id="L131" class="LineNr">131 </span> 58/pop-to-EAX
|
||||
<span id="L132" class="LineNr">132 </span> <span class="Comment"># epilog</span>
|
||||
<span id="L133" class="LineNr">133 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span>
|
||||
<span id="L134" class="LineNr">134 </span> 5d/pop-to-EBP
|
||||
<span id="L135" class="LineNr">135 </span> c3/return
|
||||
<span id="L136" class="LineNr">136 </span>
|
||||
<span id="L137" class="LineNr">137 </span>_append: <span class="Comment"># out : address, outend : address, s : (array byte) -> num_bytes_appended/EAX</span>
|
||||
<span id="L138" class="LineNr">138 </span> <span class="Comment"># prolog</span>
|
||||
<span id="L139" class="LineNr">139 </span> 55/push-EBP
|
||||
<span id="L140" class="LineNr">140 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span>
|
||||
<span id="L141" class="LineNr">141 </span> <span class="Comment"># save registers</span>
|
||||
<span id="L142" class="LineNr">142 </span> 51/push-ECX
|
||||
<span id="L143" class="LineNr">143 </span> 52/push-EDX
|
||||
<span id="L144" class="LineNr">144 </span> 53/push-EBX
|
||||
<span id="L145" class="LineNr">145 </span> 56/push-ESI
|
||||
<span id="L146" class="LineNr">146 </span> 57/push-EDI
|
||||
<span id="L147" class="LineNr">147 </span> <span class="Comment"># EAX/num_bytes_appended = 0</span>
|
||||
<span id="L148" class="LineNr">148 </span> b8/copy-to-EAX 0/imm32
|
||||
<span id="L149" class="LineNr">149 </span> <span class="Comment"># EDI = out</span>
|
||||
<span id="L150" class="LineNr">150 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 7/r32/EDI 0x8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EDI</span>
|
||||
<span id="L151" class="LineNr">151 </span> <span class="Comment"># EDX = outend</span>
|
||||
<span id="L152" class="LineNr">152 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 2/r32/EDX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to EDX</span>
|
||||
<span id="L153" class="LineNr">153 </span> <span class="Comment"># ESI = s</span>
|
||||
<span id="L154" class="LineNr">154 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 6/r32/ESI 0x10/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+16) to ESI</span>
|
||||
<span id="L155" class="LineNr">155 </span> <span class="Comment"># ECX = line.length</span>
|
||||
<span id="L156" class="LineNr">156 </span> 8b/copy 0/mod/indirect 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *ESI to ECX</span>
|
||||
<span id="L157" class="LineNr">157 </span> <span class="Comment"># ECX/srcend = &line.data[line.length]</span>
|
||||
<span id="L158" class="LineNr">158 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/ESI 1/index/ECX <span class="Delimiter"> . </span> 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy ESI+ECX+4 to ECX</span>
|
||||
<span id="L159" class="LineNr">159 </span> <span class="Comment"># ESI/src = &line.data[0]</span>
|
||||
<span id="L160" class="LineNr">160 </span> 81 0/subop/add 3/mod/direct 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESI</span>
|
||||
<span id="L161" class="LineNr">161 </span>$_append:loop:
|
||||
<span id="L162" class="LineNr">162 </span> <span class="Comment"># if ESI/src >= ECX/srcend break</span>
|
||||
<span id="L163" class="LineNr">163 </span> 39/compare 3/mod/direct 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare ESI with ECX</span>
|
||||
<span id="L164" class="LineNr">164 </span> 7d/jump-if-greater-or-equal $_append:end/disp8
|
||||
<span id="L165" class="LineNr">165 </span> <span class="Comment"># if EDI/out >= EDX/outend break (for now silently ignore filled up trace buffer)</span>
|
||||
<span id="L166" class="LineNr">166 </span> 39/compare 3/mod/direct 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EDI with EDX</span>
|
||||
<span id="L167" class="LineNr">167 </span> 7d/jump-if-greater-or-equal $_append:end/disp8
|
||||
<span id="L168" class="LineNr">168 </span> <span class="Comment"># copy one byte from ESI/src to EDI/out</span>
|
||||
<span id="L169" class="LineNr">169 </span> 8a/copy-byte 0/mod/indirect 6/rm32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/BL <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *ESI to BL</span>
|
||||
<span id="L170" class="LineNr">170 </span> 88/copy-byte 0/mod/indirect 7/rm32/EDI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/BL <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at BL to *EDI</span>
|
||||
<span id="L171" class="LineNr">171 </span> <span class="Comment"># updates</span>
|
||||
<span id="L172" class="LineNr">172 </span> 40/increment-EAX
|
||||
<span id="L173" class="LineNr">173 </span> 46/increment-ESI
|
||||
<span id="L174" class="LineNr">174 </span> 47/increment-EDI
|
||||
<span id="L175" class="LineNr">175 </span> eb/jump $_append:loop/disp8
|
||||
<span id="L176" class="LineNr">176 </span>$_append:end:
|
||||
<span id="L177" class="LineNr">177 </span> <span class="Comment"># restore registers</span>
|
||||
<span id="L178" class="LineNr">178 </span> 5f/pop-to-EDI
|
||||
<span id="L179" class="LineNr">179 </span> 5e/pop-to-ESI
|
||||
<span id="L180" class="LineNr">180 </span> 5b/pop-to-EBX
|
||||
<span id="L181" class="LineNr">181 </span> 5a/pop-to-EDX
|
||||
<span id="L182" class="LineNr">182 </span> 59/pop-to-ECX
|
||||
<span id="L183" class="LineNr">183 </span> <span class="Comment"># epilog</span>
|
||||
<span id="L184" class="LineNr">184 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span>
|
||||
<span id="L185" class="LineNr">185 </span> 5d/pop-to-EBP
|
||||
<span id="L186" class="LineNr">186 </span> c3/return
|
||||
<span id="L187" class="LineNr">187 </span>
|
||||
<span id="L188" class="LineNr">188 </span>clear-trace-stream: <span class="Comment"># t : (address trace-stream)</span>
|
||||
<span id="L189" class="LineNr">189 </span> <span class="Comment"># prolog</span>
|
||||
<span id="L190" class="LineNr">190 </span> 55/push-EBP
|
||||
<span id="L191" class="LineNr">191 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span>
|
||||
<span id="L192" class="LineNr">192 </span> <span class="Comment"># save registers</span>
|
||||
<span id="L193" class="LineNr">193 </span> 50/push-EAX
|
||||
<span id="L194" class="LineNr">194 </span> 51/push-ECX
|
||||
<span id="L195" class="LineNr">195 </span> <span class="Comment"># EAX = t</span>
|
||||
<span id="L196" class="LineNr">196 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 0/r32/EAX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EAX</span>
|
||||
<span id="L197" class="LineNr">197 </span> <span class="Comment"># ECX = t.length</span>
|
||||
<span id="L198" class="LineNr">198 </span> 8b/copy 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EAX+8) to ECX</span>
|
||||
<span id="L199" class="LineNr">199 </span> <span class="Comment"># ECX = &t.data[t.length]</span>
|
||||
<span id="L200" class="LineNr">200 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX <span class="Delimiter"> . </span> 1/r32/ECX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EAX+ECX+12 to ECX</span>
|
||||
<span id="L201" class="LineNr">201 </span> <span class="Comment"># t.write = 0</span>
|
||||
<span id="L202" class="LineNr">202 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to *EAX</span>
|
||||
<span id="L203" class="LineNr">203 </span> <span class="Comment"># t.read = 0</span>
|
||||
<span id="L204" class="LineNr">204 </span> c7/copy 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/disp8 0/imm32 <span class="Comment"># copy to *(EAX+4)</span>
|
||||
<span id="L205" class="LineNr">205 </span> <span class="Comment"># EAX = t.data</span>
|
||||
<span id="L206" class="LineNr">206 </span> 81 0/subop/add 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to EAX</span>
|
||||
<span id="L207" class="LineNr">207 </span> <span class="Comment"># while (true)</span>
|
||||
<span id="L208" class="LineNr">208 </span>$clear-trace-stream:loop:
|
||||
<span id="L209" class="LineNr">209 </span> <span class="Comment"># if EAX >= ECX break</span>
|
||||
<span id="L210" class="LineNr">210 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with ECX</span>
|
||||
<span id="L211" class="LineNr">211 </span> 7d/jump-if-greater-or-equal $clear-trace-stream:end/disp8
|
||||
<span id="L212" class="LineNr">212 </span> <span class="Comment"># *EAX = 0</span>
|
||||
<span id="L213" class="LineNr">213 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to *EAX</span>
|
||||
<span id="L214" class="LineNr">214 </span> <span class="Comment"># EAX += 4</span>
|
||||
<span id="L215" class="LineNr">215 </span> 81 0/subop/add 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to EAX</span>
|
||||
<span id="L216" class="LineNr">216 </span> eb/jump $clear-trace-stream:loop/disp8
|
||||
<span id="L217" class="LineNr">217 </span>$clear-trace-stream:end:
|
||||
<span id="L218" class="LineNr">218 </span> <span class="Comment"># restore registers</span>
|
||||
<span id="L219" class="LineNr">219 </span> 59/pop-to-ECX
|
||||
<span id="L220" class="LineNr">220 </span> 58/pop-to-EAX
|
||||
<span id="L221" class="LineNr">221 </span> <span class="Comment"># epilog</span>
|
||||
<span id="L222" class="LineNr">222 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span>
|
||||
<span id="L223" class="LineNr">223 </span> 5d/pop-to-EBP
|
||||
<span id="L224" class="LineNr">224 </span> c3/return
|
||||
<span id="L225" class="LineNr">225 </span>
|
||||
<span id="L226" class="LineNr">226 </span>test-trace-single:
|
||||
<span id="L227" class="LineNr">227 </span> <span class="Comment"># clear-trace-stream(Test-trace-stream)</span>
|
||||
<span id="L228" class="LineNr">228 </span> <span class="Comment"># push args</span>
|
||||
<span id="L229" class="LineNr">229 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L230" class="LineNr">230 </span> <span class="Comment"># call</span>
|
||||
<span id="L231" class="LineNr">231 </span> e8/call clear-trace-stream/disp32
|
||||
<span id="L232" class="LineNr">232 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L233" class="LineNr">233 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L234" class="LineNr">234 </span> <span class="Comment"># trace(Test-trace-stream, "Ab")</span>
|
||||
<span id="L235" class="LineNr">235 </span> <span class="Comment"># push args</span>
|
||||
<span id="L236" class="LineNr">236 </span> 68/push "Ab"/imm32
|
||||
<span id="L237" class="LineNr">237 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L238" class="LineNr">238 </span> <span class="Comment"># call</span>
|
||||
<span id="L239" class="LineNr">239 </span> e8/call trace/disp32
|
||||
<span id="L240" class="LineNr">240 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L241" class="LineNr">241 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L242" class="LineNr">242 </span> <span class="Comment"># check-ints-equal(*Test-trace-stream.data, 41/A 62/b 0a/newline 00, msg)</span>
|
||||
<span id="L243" class="LineNr">243 </span> <span class="Comment"># push args</span>
|
||||
<span id="L244" class="LineNr">244 </span> 68/push "F - test-trace-single"/imm32
|
||||
<span id="L245" class="LineNr">245 </span> 68/push 0x0a6241/imm32/Ab-newline
|
||||
<span id="L246" class="LineNr">246 </span> <span class="Comment"># push *Test-trace-stream.data</span>
|
||||
<span id="L247" class="LineNr">247 </span> b8/copy-to-EAX Test-trace-stream/imm32
|
||||
<span id="L248" class="LineNr">248 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EAX+12)</span>
|
||||
<span id="L249" class="LineNr">249 </span> <span class="Comment"># call</span>
|
||||
<span id="L250" class="LineNr">250 </span> e8/call check-ints-equal/disp32
|
||||
<span id="L251" class="LineNr">251 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L252" class="LineNr">252 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L253" class="LineNr">253 </span> <span class="Comment"># end</span>
|
||||
<span id="L254" class="LineNr">254 </span> c3/return
|
||||
<span id="L255" class="LineNr">255 </span>
|
||||
<span id="L256" class="LineNr">256 </span>test-trace-appends:
|
||||
<span id="L257" class="LineNr">257 </span> <span class="Comment"># clear-trace-stream(Test-trace-stream)</span>
|
||||
<span id="L258" class="LineNr">258 </span> <span class="Comment"># push args</span>
|
||||
<span id="L259" class="LineNr">259 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L260" class="LineNr">260 </span> <span class="Comment"># call</span>
|
||||
<span id="L261" class="LineNr">261 </span> e8/call clear-trace-stream/disp32
|
||||
<span id="L262" class="LineNr">262 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L263" class="LineNr">263 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L264" class="LineNr">264 </span> <span class="Comment"># trace(Test-trace-stream, "C")</span>
|
||||
<span id="L265" class="LineNr">265 </span> <span class="Comment"># push args</span>
|
||||
<span id="L266" class="LineNr">266 </span> 68/push "C"/imm32
|
||||
<span id="L267" class="LineNr">267 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L268" class="LineNr">268 </span> <span class="Comment"># call</span>
|
||||
<span id="L269" class="LineNr">269 </span> e8/call trace/disp32
|
||||
<span id="L270" class="LineNr">270 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L271" class="LineNr">271 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L272" class="LineNr">272 </span> <span class="Comment"># trace(Test-trace-stream, "D")</span>
|
||||
<span id="L273" class="LineNr">273 </span> <span class="Comment"># push args</span>
|
||||
<span id="L274" class="LineNr">274 </span> 68/push "D"/imm32
|
||||
<span id="L275" class="LineNr">275 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L276" class="LineNr">276 </span> <span class="Comment"># call</span>
|
||||
<span id="L277" class="LineNr">277 </span> e8/call trace/disp32
|
||||
<span id="L278" class="LineNr">278 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L279" class="LineNr">279 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L280" class="LineNr">280 </span> <span class="Comment"># check-ints-equal(*Test-trace-stream.data, 43/C 0a/newline 44/D 0a/newline, msg)</span>
|
||||
<span id="L281" class="LineNr">281 </span> <span class="Comment"># push args</span>
|
||||
<span id="L282" class="LineNr">282 </span> 68/push "F - test-trace-appends"/imm32
|
||||
<span id="L283" class="LineNr">283 </span> 68/push 0x0a440a43/imm32/C-newline-D-newline
|
||||
<span id="L284" class="LineNr">284 </span> <span class="Comment"># push *Test-trace-stream.data</span>
|
||||
<span id="L285" class="LineNr">285 </span> b8/copy-to-EAX Test-trace-stream/imm32
|
||||
<span id="L286" class="LineNr">286 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EAX+12)</span>
|
||||
<span id="L287" class="LineNr">287 </span> <span class="Comment"># call</span>
|
||||
<span id="L288" class="LineNr">288 </span> e8/call check-ints-equal/disp32
|
||||
<span id="L289" class="LineNr">289 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L290" class="LineNr">290 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L291" class="LineNr">291 </span> <span class="Comment"># end</span>
|
||||
<span id="L292" class="LineNr">292 </span> c3/return
|
||||
<span id="L293" class="LineNr">293 </span>
|
||||
<span id="L294" class="LineNr">294 </span>test-trace-empty-line:
|
||||
<span id="L295" class="LineNr">295 </span> <span class="Comment"># clear-trace-stream(Test-trace-stream)</span>
|
||||
<span id="L296" class="LineNr">296 </span> <span class="Comment"># push args</span>
|
||||
<span id="L297" class="LineNr">297 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L298" class="LineNr">298 </span> <span class="Comment"># call</span>
|
||||
<span id="L299" class="LineNr">299 </span> e8/call clear-trace-stream/disp32
|
||||
<span id="L300" class="LineNr">300 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L301" class="LineNr">301 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L302" class="LineNr">302 </span> <span class="Comment"># trace(Test-trace-stream, "")</span>
|
||||
<span id="L303" class="LineNr">303 </span> <span class="Comment"># push args</span>
|
||||
<span id="L304" class="LineNr">304 </span> 68/push ""/imm32
|
||||
<span id="L305" class="LineNr">305 </span> 68/push Test-trace-stream/imm32
|
||||
<span id="L306" class="LineNr">306 </span> <span class="Comment"># call</span>
|
||||
<span id="L307" class="LineNr">307 </span> e8/call trace/disp32
|
||||
<span id="L308" class="LineNr">308 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L309" class="LineNr">309 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L310" class="LineNr">310 </span> <span class="Comment"># check-ints-equal(*Test-trace-stream.data, 0, msg)</span>
|
||||
<span id="L311" class="LineNr">311 </span> <span class="Comment"># push args</span>
|
||||
<span id="L312" class="LineNr">312 </span> 68/push "F - test-trace-empty-line"/imm32
|
||||
<span id="L313" class="LineNr">313 </span> 68/push 0/imm32
|
||||
<span id="L314" class="LineNr">314 </span> <span class="Comment"># push *Test-trace-stream.data</span>
|
||||
<span id="L315" class="LineNr">315 </span> b8/copy-to-EAX Test-trace-stream/imm32
|
||||
<span id="L316" class="LineNr">316 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EAX+12)</span>
|
||||
<span id="L317" class="LineNr">317 </span> <span class="Comment"># call</span>
|
||||
<span id="L318" class="LineNr">318 </span> e8/call check-ints-equal/disp32
|
||||
<span id="L319" class="LineNr">319 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L320" class="LineNr">320 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L321" class="LineNr">321 </span> <span class="Comment"># end</span>
|
||||
<span id="L322" class="LineNr">322 </span> c3/return
|
||||
<span id="L323" class="LineNr">323 </span>
|
||||
<span id="L324" class="LineNr">324 </span><span class="Comment"># vim:nowrap:textwidth=0</span>
|
||||
</pre>
|
||||
</body>
|
||||
</html>
|
||||
|
|
|
|||
|
|
@ -15,7 +15,6 @@ body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color
|
|||
a { color:#eeeeee; text-decoration: none; }
|
||||
a:hover { text-decoration: underline; }
|
||||
* { font-size: 12pt; font-size: 1em; }
|
||||
.CommentedCode { color: #6c6c6c; }
|
||||
.LineNr { color: #444444; }
|
||||
.Delimiter { color: #800080; }
|
||||
.Comment { color: #9090ff; }
|
||||
|
|
@ -89,222 +88,169 @@ if ('onhashchange' in window) {
|
|||
<span id="L33" class="LineNr"> 33 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span>
|
||||
<span id="L34" class="LineNr"> 34 </span>
|
||||
<span id="L35" class="LineNr"> 35 </span><span class="Comment"># main: (manual test if this is the last file loaded)</span>
|
||||
<span id="L36" class="LineNr"> 36 </span><span class="CommentedCode">#? e8/call test-write-appends/disp32</span>
|
||||
<span id="L37" class="LineNr"> 37 </span> e8/call run-tests/disp32 <span class="Comment"># 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.</span>
|
||||
<span id="L38" class="LineNr"> 38 </span> <span class="Comment"># syscall(exit, Num-test-failures)</span>
|
||||
<span id="L39" class="LineNr"> 39 </span> 8b/copy 0/mod/indirect 5/rm32/.disp32 <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/EBX Num-test-failures/disp32 <span class="Comment"># copy *Num-test-failures to EBX</span>
|
||||
<span id="L40" class="LineNr"> 40 </span> b8/copy-to-EAX 1/imm32
|
||||
<span id="L41" class="LineNr"> 41 </span> cd/syscall 0x80/imm8
|
||||
<span id="L42" class="LineNr"> 42 </span>
|
||||
<span id="L43" class="LineNr"> 43 </span>write: <span class="Comment"># f : fd or (address stream), s : (address array byte) -> <void></span>
|
||||
<span id="L44" class="LineNr"> 44 </span> <span class="Comment"># prolog</span>
|
||||
<span id="L45" class="LineNr"> 45 </span> 55/push-EBP
|
||||
<span id="L46" class="LineNr"> 46 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span>
|
||||
<span id="L47" class="LineNr"> 47 </span> <span class="Comment"># save registers</span>
|
||||
<span id="L48" class="LineNr"> 48 </span> 50/push-EAX
|
||||
<span id="L49" class="LineNr"> 49 </span> 51/push-ECX
|
||||
<span id="L50" class="LineNr"> 50 </span> 52/push-EDX
|
||||
<span id="L51" class="LineNr"> 51 </span> 53/push-EBX
|
||||
<span id="L52" class="LineNr"> 52 </span> 56/push-ESI
|
||||
<span id="L53" class="LineNr"> 53 </span> <span class="Comment"># if (f < 0x08000000) _write(f, s), return # f can't be a user-mode address, so treat it as a kernel file descriptor</span>
|
||||
<span id="L54" class="LineNr"> 54 </span> 81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/disp8 0x08000000/imm32 <span class="Comment"># compare *(EBP+8)</span>
|
||||
<span id="L55" class="LineNr"> 55 </span> 7f/jump-if-greater $write:else/disp8
|
||||
<span id="L56" class="LineNr"> 56 </span> <span class="Comment"># push args</span>
|
||||
<span id="L57" class="LineNr"> 57 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+8)</span>
|
||||
<span id="L58" class="LineNr"> 58 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+12)</span>
|
||||
<span id="L59" class="LineNr"> 59 </span> <span class="Comment"># call</span>
|
||||
<span id="L60" class="LineNr"> 60 </span> e8/call _write/disp32
|
||||
<span id="L61" class="LineNr"> 61 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L62" class="LineNr"> 62 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L63" class="LineNr"> 63 </span> eb/jump $write:end/disp8
|
||||
<span id="L64" class="LineNr"> 64 </span>$write:else:
|
||||
<span id="L65" class="LineNr"> 65 </span> <span class="Comment"># otherwise, treat 'f' as a stream to append to</span>
|
||||
<span id="L66" class="LineNr"> 66 </span> <span class="Comment">#</span>
|
||||
<span id="L67" class="LineNr"> 67 </span> <span class="Comment"># pseudocode:</span>
|
||||
<span id="L68" class="LineNr"> 68 </span> <span class="Comment"># destend = &f.data[t.length]</span>
|
||||
<span id="L69" class="LineNr"> 69 </span> <span class="Comment"># oldw = f.write</span>
|
||||
<span id="L70" class="LineNr"> 70 </span> <span class="Comment"># if s.length == 0 return</span>
|
||||
<span id="L71" class="LineNr"> 71 </span> <span class="Comment"># f.write += s.length</span>
|
||||
<span id="L72" class="LineNr"> 72 </span> <span class="Comment"># dest = &f.data[oldw]</span>
|
||||
<span id="L73" class="LineNr"> 73 </span> <span class="Comment"># srcend = &s.data[s.length]</span>
|
||||
<span id="L74" class="LineNr"> 74 </span> <span class="Comment"># src = &s.data[0]</span>
|
||||
<span id="L75" class="LineNr"> 75 </span> <span class="Comment"># while true:</span>
|
||||
<span id="L76" class="LineNr"> 76 </span> <span class="Comment"># if src >= srcend break</span>
|
||||
<span id="L77" class="LineNr"> 77 </span> <span class="Comment"># if dest >= destend break # for now silently ignore filled up ostream buffer</span>
|
||||
<span id="L78" class="LineNr"> 78 </span> <span class="Comment"># *dest = *src</span>
|
||||
<span id="L79" class="LineNr"> 79 </span> <span class="Comment"># ++src</span>
|
||||
<span id="L80" class="LineNr"> 80 </span> <span class="Comment"># ++dest</span>
|
||||
<span id="L81" class="LineNr"> 81 </span> <span class="Comment">#</span>
|
||||
<span id="L82" class="LineNr"> 82 </span> <span class="Comment"># key registers to set up for the loop:</span>
|
||||
<span id="L83" class="LineNr"> 83 </span> <span class="Comment"># EAX/dest, ECX/destend, EBX/src, ESI/srcend</span>
|
||||
<span id="L84" class="LineNr"> 84 </span> <span class="Comment"># we save EDX for byte operations (has to be one of the first 4 registers)</span>
|
||||
<span id="L85" class="LineNr"> 85 </span> <span class="Comment">#</span>
|
||||
<span id="L86" class="LineNr"> 86 </span> <span class="Comment"># register setup before the loop:</span>
|
||||
<span id="L87" class="LineNr"> 87 </span> <span class="Comment"># EAX = *(EBP+8) # f</span>
|
||||
<span id="L88" class="LineNr"> 88 </span> <span class="Comment"># EBX = *(EBP+12) # s</span>
|
||||
<span id="L89" class="LineNr"> 89 </span> <span class="Comment"># ECX = *(EAX+4) # f.length</span>
|
||||
<span id="L90" class="LineNr"> 90 </span> <span class="Comment"># ECX = EAX+8+ECX # destend = &f.data[f.length]</span>
|
||||
<span id="L91" class="LineNr"> 91 </span> <span class="Comment"># ESI = *EAX # oldw = f.write</span>
|
||||
<span id="L92" class="LineNr"> 92 </span> <span class="Comment"># EDX = *EBX # s.length</span>
|
||||
<span id="L93" class="LineNr"> 93 </span> <span class="Comment"># *EAX = *EAX + EDX # update f.write (allowed to go past f.length)</span>
|
||||
<span id="L94" class="LineNr"> 94 </span> <span class="Comment"># # do this here just because it's convenient</span>
|
||||
<span id="L95" class="LineNr"> 95 </span> <span class="Comment"># EAX = EAX+8+ESI # dest = &f.data[oldw]</span>
|
||||
<span id="L96" class="LineNr"> 96 </span> <span class="Comment"># ESI = EBX+4+EDX # srcend = &s.data[s.length]</span>
|
||||
<span id="L97" class="LineNr"> 97 </span> <span class="Comment"># EBX = EBX+4 # src = &s.data[0]</span>
|
||||
<span id="L98" class="LineNr"> 98 </span> <span class="Comment">#</span>
|
||||
<span id="L99" class="LineNr"> 99 </span> <span class="Comment"># EAX = f</span>
|
||||
<span id="L100" class="LineNr">100 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 0/r32/EAX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EAX</span>
|
||||
<span id="L101" class="LineNr">101 </span> <span class="Comment"># EBX = s</span>
|
||||
<span id="L102" class="LineNr">102 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 3/r32/EBX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to EBX</span>
|
||||
<span id="L103" class="LineNr">103 </span> <span class="Comment"># ECX = f.length</span>
|
||||
<span id="L104" class="LineNr">104 </span> 8b/copy 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EAX+4) to ECX</span>
|
||||
<span id="L105" class="LineNr">105 </span> <span class="Comment"># ECX/destend = &f.data[f.length]</span>
|
||||
<span id="L106" class="LineNr">106 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EAX+ECX+8 to ECX</span>
|
||||
<span id="L107" class="LineNr">107 </span> <span class="Comment"># ESI/oldw = f.write</span>
|
||||
<span id="L108" class="LineNr">108 </span> 8b/copy 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 6/r32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EAX to ESI</span>
|
||||
<span id="L109" class="LineNr">109 </span> <span class="Comment"># EDX = s.length</span>
|
||||
<span id="L110" class="LineNr">110 </span> 8b/copy 0/mod/indirect 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EBX to EDX</span>
|
||||
<span id="L111" class="LineNr">111 </span> <span class="Comment"># if EDX == 0 return</span>
|
||||
<span id="L112" class="LineNr">112 </span> 81 7/subop/compare 3/mod/direct 2/rm32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare EDX</span>
|
||||
<span id="L113" class="LineNr">113 </span> 74/jump-if-equal $write:end/disp8
|
||||
<span id="L114" class="LineNr">114 </span> <span class="Comment"># f.write += s.length</span>
|
||||
<span id="L115" class="LineNr">115 </span> 01/add 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># add EDX to *EAX</span>
|
||||
<span id="L116" class="LineNr">116 </span> <span class="Comment"># EAX/dest = &f.data[oldw]</span>
|
||||
<span id="L117" class="LineNr">117 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 6/index/ESI <span class="Delimiter"> . </span> 0/r32/EAX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EAX+ESI+8 to EAX</span>
|
||||
<span id="L118" class="LineNr">118 </span> <span class="Comment"># ESI/srcend = &s.data[s.length]</span>
|
||||
<span id="L119" class="LineNr">119 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 3/base/EBX 2/index/EDX <span class="Delimiter"> . </span> 6/r32/ESI 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EBX+EDX+4 to ESI</span>
|
||||
<span id="L120" class="LineNr">120 </span> <span class="Comment"># EBX/src = &s.data[0]</span>
|
||||
<span id="L121" class="LineNr">121 </span> 81 0/subop/add 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to EBX</span>
|
||||
<span id="L122" class="LineNr">122 </span> <span class="Comment"># while (true)</span>
|
||||
<span id="L123" class="LineNr">123 </span>$write:loop:
|
||||
<span id="L124" class="LineNr">124 </span> <span class="Comment"># if EBX/src >= ESI/srcend break</span>
|
||||
<span id="L125" class="LineNr">125 </span> 39/compare 3/mod/direct 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 6/r32/ESI <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EBX with ESI</span>
|
||||
<span id="L126" class="LineNr">126 </span> 7d/jump-if-greater-or-equal $write:end/disp8
|
||||
<span id="L127" class="LineNr">127 </span> <span class="Comment"># if EAX/dest >= ECX/destend break (for now silently ignore filled up ostream buffer)</span>
|
||||
<span id="L128" class="LineNr">128 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with ECX</span>
|
||||
<span id="L129" class="LineNr">129 </span> 7d/jump-if-greater-or-equal $write:end/disp8
|
||||
<span id="L130" class="LineNr">130 </span> <span class="Comment"># copy one byte</span>
|
||||
<span id="L131" class="LineNr">131 </span> 8a/copy-byte 0/mod/indirect 3/rm32/EBX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/DL <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at *EBX to DL</span>
|
||||
<span id="L132" class="LineNr">132 </span> 88/copy-byte 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/DL <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy byte at DL to *EAX</span>
|
||||
<span id="L133" class="LineNr">133 </span> <span class="Comment"># updates</span>
|
||||
<span id="L134" class="LineNr">134 </span> 40/increment-EAX
|
||||
<span id="L135" class="LineNr">135 </span> 43/increment-EBX
|
||||
<span id="L136" class="LineNr">136 </span> eb/jump $write:loop/disp8
|
||||
<span id="L137" class="LineNr">137 </span>$write:end:
|
||||
<span id="L138" class="LineNr">138 </span> <span class="Comment"># restore registers</span>
|
||||
<span id="L139" class="LineNr">139 </span> 5e/pop-to-ESI
|
||||
<span id="L140" class="LineNr">140 </span> 5b/pop-to-EBX
|
||||
<span id="L141" class="LineNr">141 </span> 5a/pop-to-EDX
|
||||
<span id="L142" class="LineNr">142 </span> 59/pop-to-ECX
|
||||
<span id="L143" class="LineNr">143 </span> 58/pop-to-EAX
|
||||
<span id="L144" class="LineNr">144 </span> <span class="Comment"># epilog</span>
|
||||
<span id="L145" class="LineNr">145 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span>
|
||||
<span id="L146" class="LineNr">146 </span> 5d/pop-to-EBP
|
||||
<span id="L147" class="LineNr">147 </span> c3/return
|
||||
<span id="L148" class="LineNr">148 </span>
|
||||
<span id="L149" class="LineNr">149 </span>clear-ostream: <span class="Comment"># f : (address ostream)</span>
|
||||
<span id="L150" class="LineNr">150 </span> <span class="Comment"># prolog</span>
|
||||
<span id="L151" class="LineNr">151 </span> 55/push-EBP
|
||||
<span id="L152" class="LineNr">152 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span>
|
||||
<span id="L153" class="LineNr">153 </span> <span class="Comment"># save registers</span>
|
||||
<span id="L154" class="LineNr">154 </span> 50/push-EAX
|
||||
<span id="L155" class="LineNr">155 </span> 51/push-ECX
|
||||
<span id="L156" class="LineNr">156 </span> <span class="Comment"># EAX = f</span>
|
||||
<span id="L157" class="LineNr">157 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 0/r32/EAX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EAX</span>
|
||||
<span id="L158" class="LineNr">158 </span> <span class="Comment"># ECX = f.length</span>
|
||||
<span id="L159" class="LineNr">159 </span> 8b/copy 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EAX+4) to ECX</span>
|
||||
<span id="L160" class="LineNr">160 </span> <span class="Comment"># ECX = &f.data[f.length]</span>
|
||||
<span id="L161" class="LineNr">161 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EAX+ECX+8 to ECX</span>
|
||||
<span id="L162" class="LineNr">162 </span> <span class="Comment"># f.write = 0</span>
|
||||
<span id="L163" class="LineNr">163 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to *EAX</span>
|
||||
<span id="L164" class="LineNr">164 </span> <span class="Comment"># EAX = f.data</span>
|
||||
<span id="L165" class="LineNr">165 </span> 81 0/subop/add 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to EAX</span>
|
||||
<span id="L166" class="LineNr">166 </span> <span class="Comment"># while (true)</span>
|
||||
<span id="L167" class="LineNr">167 </span>$clear-ostream:loop:
|
||||
<span id="L168" class="LineNr">168 </span> <span class="Comment"># if EAX >= ECX break</span>
|
||||
<span id="L169" class="LineNr">169 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with ECX</span>
|
||||
<span id="L170" class="LineNr">170 </span> 7d/jump-if-greater-or-equal $clear-ostream:end/disp8
|
||||
<span id="L171" class="LineNr">171 </span> <span class="Comment"># *EAX = 0</span>
|
||||
<span id="L172" class="LineNr">172 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to *EAX</span>
|
||||
<span id="L173" class="LineNr">173 </span> <span class="Comment"># EAX += 4</span>
|
||||
<span id="L174" class="LineNr">174 </span> 81 0/subop/add 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to EAX</span>
|
||||
<span id="L175" class="LineNr">175 </span> eb/jump $clear-ostream:loop/disp8
|
||||
<span id="L176" class="LineNr">176 </span>$clear-ostream:end:
|
||||
<span id="L177" class="LineNr">177 </span> <span class="Comment"># restore registers</span>
|
||||
<span id="L178" class="LineNr">178 </span> 59/pop-to-ECX
|
||||
<span id="L179" class="LineNr">179 </span> 58/pop-to-EAX
|
||||
<span id="L180" class="LineNr">180 </span> <span class="Comment"># epilog</span>
|
||||
<span id="L181" class="LineNr">181 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span>
|
||||
<span id="L182" class="LineNr">182 </span> 5d/pop-to-EBP
|
||||
<span id="L183" class="LineNr">183 </span> c3/return
|
||||
<span id="L184" class="LineNr">184 </span>
|
||||
<span id="L185" class="LineNr">185 </span>test-write-single:
|
||||
<span id="L186" class="LineNr">186 </span> <span class="Comment"># clear-ostream(Test-ostream)</span>
|
||||
<span id="L36" class="LineNr"> 36 </span> e8/call run-tests/disp32 <span class="Comment"># 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.</span>
|
||||
<span id="L37" class="LineNr"> 37 </span> <span class="Comment"># syscall(exit, Num-test-failures)</span>
|
||||
<span id="L38" class="LineNr"> 38 </span> 8b/copy 0/mod/indirect 5/rm32/.disp32 <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/EBX Num-test-failures/disp32 <span class="Comment"># copy *Num-test-failures to EBX</span>
|
||||
<span id="L39" class="LineNr"> 39 </span> b8/copy-to-EAX 1/imm32
|
||||
<span id="L40" class="LineNr"> 40 </span> cd/syscall 0x80/imm8
|
||||
<span id="L41" class="LineNr"> 41 </span>
|
||||
<span id="L42" class="LineNr"> 42 </span>write: <span class="Comment"># f : fd or (address stream), s : (address array byte) -> <void></span>
|
||||
<span id="L43" class="LineNr"> 43 </span> <span class="Comment"># prolog</span>
|
||||
<span id="L44" class="LineNr"> 44 </span> 55/push-EBP
|
||||
<span id="L45" class="LineNr"> 45 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span>
|
||||
<span id="L46" class="LineNr"> 46 </span> <span class="Comment"># if (f < 0x08000000) _write(f, s), return # f can't be a user-mode address, so treat it as a kernel file descriptor</span>
|
||||
<span id="L47" class="LineNr"> 47 </span> 81 7/subop/compare 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/disp8 0x08000000/imm32 <span class="Comment"># compare *(EBP+8)</span>
|
||||
<span id="L48" class="LineNr"> 48 </span> 7f/jump-if-greater $write:fake/disp8
|
||||
<span id="L49" class="LineNr"> 49 </span> <span class="Comment"># push args</span>
|
||||
<span id="L50" class="LineNr"> 50 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+12)</span>
|
||||
<span id="L51" class="LineNr"> 51 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+8)</span>
|
||||
<span id="L52" class="LineNr"> 52 </span> <span class="Comment"># call</span>
|
||||
<span id="L53" class="LineNr"> 53 </span> e8/call _write/disp32
|
||||
<span id="L54" class="LineNr"> 54 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L55" class="LineNr"> 55 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L56" class="LineNr"> 56 </span> eb/jump $write:end/disp8
|
||||
<span id="L57" class="LineNr"> 57 </span>$write:fake:
|
||||
<span id="L58" class="LineNr"> 58 </span> <span class="Comment"># otherwise, treat 'f' as a stream to append to</span>
|
||||
<span id="L59" class="LineNr"> 59 </span> <span class="Comment"># save registers</span>
|
||||
<span id="L60" class="LineNr"> 60 </span> 50/push-EAX
|
||||
<span id="L61" class="LineNr"> 61 </span> 51/push-ECX
|
||||
<span id="L62" class="LineNr"> 62 </span> 52/push-EDX
|
||||
<span id="L63" class="LineNr"> 63 </span> 53/push-EBX
|
||||
<span id="L64" class="LineNr"> 64 </span> <span class="Comment"># ECX = f</span>
|
||||
<span id="L65" class="LineNr"> 65 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to ECX</span>
|
||||
<span id="L66" class="LineNr"> 66 </span> <span class="Comment"># EDX = f.write</span>
|
||||
<span id="L67" class="LineNr"> 67 </span> 8b/copy 0/mod/indirect 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 2/r32/EDX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *ECX to EDX</span>
|
||||
<span id="L68" class="LineNr"> 68 </span> <span class="Comment"># EBX = f.length</span>
|
||||
<span id="L69" class="LineNr"> 69 </span> 8b/copy 1/mod/*+disp8 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ECX+4) to EBX</span>
|
||||
<span id="L70" class="LineNr"> 70 </span> <span class="Comment"># EAX = _append(&f.data[f.write], &f.data[f.length], s)</span>
|
||||
<span id="L71" class="LineNr"> 71 </span> <span class="Comment"># push s</span>
|
||||
<span id="L72" class="LineNr"> 72 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+12)</span>
|
||||
<span id="L73" class="LineNr"> 73 </span> <span class="Comment"># push &f.data[f.length]</span>
|
||||
<span id="L74" class="LineNr"> 74 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ECX 3/index/EBX <span class="Delimiter"> . </span> 3/r32/EBX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy ECX+EBX+8 to EBX</span>
|
||||
<span id="L75" class="LineNr"> 75 </span> 53/push-EBX
|
||||
<span id="L76" class="LineNr"> 76 </span> <span class="Comment"># push &f.data[f.write]</span>
|
||||
<span id="L77" class="LineNr"> 77 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ECX 2/index/EDX <span class="Delimiter"> . </span> 3/r32/EBX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy ECX+EBX+8 to EBX</span>
|
||||
<span id="L78" class="LineNr"> 78 </span> 53/push-EBX
|
||||
<span id="L79" class="LineNr"> 79 </span> <span class="Comment"># call</span>
|
||||
<span id="L80" class="LineNr"> 80 </span> e8/call _append/disp32
|
||||
<span id="L81" class="LineNr"> 81 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L82" class="LineNr"> 82 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L83" class="LineNr"> 83 </span> <span class="Comment"># f.write += EAX</span>
|
||||
<span id="L84" class="LineNr"> 84 </span> 01/add 0/mod/indirect 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># add EAX to *ECX</span>
|
||||
<span id="L85" class="LineNr"> 85 </span> <span class="Comment"># restore registers</span>
|
||||
<span id="L86" class="LineNr"> 86 </span> 5b/pop-to-EBX
|
||||
<span id="L87" class="LineNr"> 87 </span> 5a/pop-to-EDX
|
||||
<span id="L88" class="LineNr"> 88 </span> 59/pop-to-ECX
|
||||
<span id="L89" class="LineNr"> 89 </span> 58/pop-to-EAX
|
||||
<span id="L90" class="LineNr"> 90 </span>$write:end:
|
||||
<span id="L91" class="LineNr"> 91 </span> <span class="Comment"># epilog</span>
|
||||
<span id="L92" class="LineNr"> 92 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span>
|
||||
<span id="L93" class="LineNr"> 93 </span> 5d/pop-to-EBP
|
||||
<span id="L94" class="LineNr"> 94 </span> c3/return
|
||||
<span id="L95" class="LineNr"> 95 </span>
|
||||
<span id="L96" class="LineNr"> 96 </span>clear-ostream: <span class="Comment"># f : (address ostream)</span>
|
||||
<span id="L97" class="LineNr"> 97 </span> <span class="Comment"># prolog</span>
|
||||
<span id="L98" class="LineNr"> 98 </span> 55/push-EBP
|
||||
<span id="L99" class="LineNr"> 99 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span>
|
||||
<span id="L100" class="LineNr">100 </span> <span class="Comment"># save registers</span>
|
||||
<span id="L101" class="LineNr">101 </span> 50/push-EAX
|
||||
<span id="L102" class="LineNr">102 </span> 51/push-ECX
|
||||
<span id="L103" class="LineNr">103 </span> <span class="Comment"># EAX = f</span>
|
||||
<span id="L104" class="LineNr">104 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none 0/r32/EAX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to EAX</span>
|
||||
<span id="L105" class="LineNr">105 </span> <span class="Comment"># ECX = f.length</span>
|
||||
<span id="L106" class="LineNr">106 </span> 8b/copy 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EAX+4) to ECX</span>
|
||||
<span id="L107" class="LineNr">107 </span> <span class="Comment"># ECX = &f.data[f.length]</span>
|
||||
<span id="L108" class="LineNr">108 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/EAX 1/index/ECX <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EAX+ECX+8 to ECX</span>
|
||||
<span id="L109" class="LineNr">109 </span> <span class="Comment"># f.write = 0</span>
|
||||
<span id="L110" class="LineNr">110 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to *EAX</span>
|
||||
<span id="L111" class="LineNr">111 </span> <span class="Comment"># EAX = f.data</span>
|
||||
<span id="L112" class="LineNr">112 </span> 81 0/subop/add 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to EAX</span>
|
||||
<span id="L113" class="LineNr">113 </span> <span class="Comment"># while (true)</span>
|
||||
<span id="L114" class="LineNr">114 </span>$clear-ostream:loop:
|
||||
<span id="L115" class="LineNr">115 </span> <span class="Comment"># if EAX >= ECX break</span>
|
||||
<span id="L116" class="LineNr">116 </span> 39/compare 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># compare EAX with ECX</span>
|
||||
<span id="L117" class="LineNr">117 </span> 7d/jump-if-greater-or-equal $clear-ostream:end/disp8
|
||||
<span id="L118" class="LineNr">118 </span> <span class="Comment"># *EAX = 0</span>
|
||||
<span id="L119" class="LineNr">119 </span> c7/copy 0/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># copy to *EAX</span>
|
||||
<span id="L120" class="LineNr">120 </span> <span class="Comment"># EAX += 4</span>
|
||||
<span id="L121" class="LineNr">121 </span> 81 0/subop/add 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to EAX</span>
|
||||
<span id="L122" class="LineNr">122 </span> eb/jump $clear-ostream:loop/disp8
|
||||
<span id="L123" class="LineNr">123 </span>$clear-ostream:end:
|
||||
<span id="L124" class="LineNr">124 </span> <span class="Comment"># restore registers</span>
|
||||
<span id="L125" class="LineNr">125 </span> 59/pop-to-ECX
|
||||
<span id="L126" class="LineNr">126 </span> 58/pop-to-EAX
|
||||
<span id="L127" class="LineNr">127 </span> <span class="Comment"># epilog</span>
|
||||
<span id="L128" class="LineNr">128 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span>
|
||||
<span id="L129" class="LineNr">129 </span> 5d/pop-to-EBP
|
||||
<span id="L130" class="LineNr">130 </span> c3/return
|
||||
<span id="L131" class="LineNr">131 </span>
|
||||
<span id="L132" class="LineNr">132 </span>test-write-single:
|
||||
<span id="L133" class="LineNr">133 </span> <span class="Comment"># clear-ostream(Test-ostream)</span>
|
||||
<span id="L134" class="LineNr">134 </span> <span class="Comment"># push args</span>
|
||||
<span id="L135" class="LineNr">135 </span> 68/push Test-ostream/imm32
|
||||
<span id="L136" class="LineNr">136 </span> <span class="Comment"># call</span>
|
||||
<span id="L137" class="LineNr">137 </span> e8/call clear-ostream/disp32
|
||||
<span id="L138" class="LineNr">138 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L139" class="LineNr">139 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L140" class="LineNr">140 </span> <span class="Comment"># write(Test-ostream, "Ab")</span>
|
||||
<span id="L141" class="LineNr">141 </span> <span class="Comment"># push args</span>
|
||||
<span id="L142" class="LineNr">142 </span> 68/push "Ab"/imm32
|
||||
<span id="L143" class="LineNr">143 </span> 68/push Test-ostream/imm32
|
||||
<span id="L144" class="LineNr">144 </span> <span class="Comment"># call</span>
|
||||
<span id="L145" class="LineNr">145 </span> e8/call write/disp32
|
||||
<span id="L146" class="LineNr">146 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L147" class="LineNr">147 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L148" class="LineNr">148 </span> <span class="Comment"># check-ints-equal(*Test-ostream.data, 41/A 62/b 00 00, msg)</span>
|
||||
<span id="L149" class="LineNr">149 </span> <span class="Comment"># push args</span>
|
||||
<span id="L150" class="LineNr">150 </span> 68/push "F - test-write-single"/imm32
|
||||
<span id="L151" class="LineNr">151 </span> 68/push 0x006241/imm32/Ab
|
||||
<span id="L152" class="LineNr">152 </span> <span class="Comment"># push *Test-ostream.data</span>
|
||||
<span id="L153" class="LineNr">153 </span> b8/copy-to-EAX Test-ostream/imm32
|
||||
<span id="L154" class="LineNr">154 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EAX+8)</span>
|
||||
<span id="L155" class="LineNr">155 </span> <span class="Comment"># call</span>
|
||||
<span id="L156" class="LineNr">156 </span> e8/call check-ints-equal/disp32
|
||||
<span id="L157" class="LineNr">157 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L158" class="LineNr">158 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L159" class="LineNr">159 </span> <span class="Comment"># end</span>
|
||||
<span id="L160" class="LineNr">160 </span> c3/return
|
||||
<span id="L161" class="LineNr">161 </span>
|
||||
<span id="L162" class="LineNr">162 </span>test-write-appends:
|
||||
<span id="L163" class="LineNr">163 </span> <span class="Comment"># clear-ostream(Test-ostream)</span>
|
||||
<span id="L164" class="LineNr">164 </span> <span class="Comment"># push args</span>
|
||||
<span id="L165" class="LineNr">165 </span> 68/push Test-ostream/imm32
|
||||
<span id="L166" class="LineNr">166 </span> <span class="Comment"># call</span>
|
||||
<span id="L167" class="LineNr">167 </span> e8/call clear-ostream/disp32
|
||||
<span id="L168" class="LineNr">168 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L169" class="LineNr">169 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L170" class="LineNr">170 </span> <span class="Comment"># write(Test-ostream, "C")</span>
|
||||
<span id="L171" class="LineNr">171 </span> <span class="Comment"># push args</span>
|
||||
<span id="L172" class="LineNr">172 </span> 68/push "C"/imm32
|
||||
<span id="L173" class="LineNr">173 </span> 68/push Test-ostream/imm32
|
||||
<span id="L174" class="LineNr">174 </span> <span class="Comment"># call</span>
|
||||
<span id="L175" class="LineNr">175 </span> e8/call write/disp32
|
||||
<span id="L176" class="LineNr">176 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L177" class="LineNr">177 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L178" class="LineNr">178 </span> <span class="Comment"># write(Test-ostream, "D")</span>
|
||||
<span id="L179" class="LineNr">179 </span> <span class="Comment"># push args</span>
|
||||
<span id="L180" class="LineNr">180 </span> 68/push "D"/imm32
|
||||
<span id="L181" class="LineNr">181 </span> 68/push Test-ostream/imm32
|
||||
<span id="L182" class="LineNr">182 </span> <span class="Comment"># call</span>
|
||||
<span id="L183" class="LineNr">183 </span> e8/call write/disp32
|
||||
<span id="L184" class="LineNr">184 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L185" class="LineNr">185 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L186" class="LineNr">186 </span> <span class="Comment"># check-ints-equal(*Test-ostream.data, 43/C 44/D 00 00, msg)</span>
|
||||
<span id="L187" class="LineNr">187 </span> <span class="Comment"># push args</span>
|
||||
<span id="L188" class="LineNr">188 </span> 68/push Test-ostream/imm32
|
||||
<span id="L189" class="LineNr">189 </span> <span class="Comment"># call</span>
|
||||
<span id="L190" class="LineNr">190 </span> e8/call clear-ostream/disp32
|
||||
<span id="L191" class="LineNr">191 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L192" class="LineNr">192 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L193" class="LineNr">193 </span> <span class="Comment"># write(Test-ostream, "Ab")</span>
|
||||
<span id="L194" class="LineNr">194 </span> <span class="Comment"># push args</span>
|
||||
<span id="L195" class="LineNr">195 </span> 68/push "Ab"/imm32
|
||||
<span id="L196" class="LineNr">196 </span> 68/push Test-ostream/imm32
|
||||
<span id="L197" class="LineNr">197 </span> <span class="Comment"># call</span>
|
||||
<span id="L198" class="LineNr">198 </span> e8/call write/disp32
|
||||
<span id="L199" class="LineNr">199 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L200" class="LineNr">200 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L201" class="LineNr">201 </span> <span class="Comment"># check-ints-equal(*Test-ostream.data, 41/A 62/b 00 00, msg)</span>
|
||||
<span id="L202" class="LineNr">202 </span> <span class="Comment"># push args</span>
|
||||
<span id="L203" class="LineNr">203 </span> 68/push "F - test-write-single"/imm32
|
||||
<span id="L204" class="LineNr">204 </span> 68/push 0x006241/imm32/Ab
|
||||
<span id="L205" class="LineNr">205 </span> <span class="Comment"># push *Test-ostream.data</span>
|
||||
<span id="L206" class="LineNr">206 </span> b8/copy-to-EAX Test-ostream/imm32
|
||||
<span id="L207" class="LineNr">207 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EAX+8)</span>
|
||||
<span id="L208" class="LineNr">208 </span> <span class="Comment"># call</span>
|
||||
<span id="L209" class="LineNr">209 </span> e8/call check-ints-equal/disp32
|
||||
<span id="L210" class="LineNr">210 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L211" class="LineNr">211 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L212" class="LineNr">212 </span> <span class="Comment"># end</span>
|
||||
<span id="L213" class="LineNr">213 </span> c3/return
|
||||
<span id="L214" class="LineNr">214 </span>
|
||||
<span id="L215" class="LineNr">215 </span>test-write-appends:
|
||||
<span id="L216" class="LineNr">216 </span> <span class="Comment"># clear-ostream(Test-ostream)</span>
|
||||
<span id="L217" class="LineNr">217 </span> <span class="Comment"># push args</span>
|
||||
<span id="L218" class="LineNr">218 </span> 68/push Test-ostream/imm32
|
||||
<span id="L219" class="LineNr">219 </span> <span class="Comment"># call</span>
|
||||
<span id="L220" class="LineNr">220 </span> e8/call clear-ostream/disp32
|
||||
<span id="L221" class="LineNr">221 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L222" class="LineNr">222 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L223" class="LineNr">223 </span> <span class="Comment"># write(Test-ostream, "C")</span>
|
||||
<span id="L224" class="LineNr">224 </span> <span class="Comment"># push args</span>
|
||||
<span id="L225" class="LineNr">225 </span> 68/push "C"/imm32
|
||||
<span id="L226" class="LineNr">226 </span> 68/push Test-ostream/imm32
|
||||
<span id="L227" class="LineNr">227 </span> <span class="Comment"># call</span>
|
||||
<span id="L228" class="LineNr">228 </span> e8/call write/disp32
|
||||
<span id="L229" class="LineNr">229 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L230" class="LineNr">230 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L231" class="LineNr">231 </span> <span class="Comment"># write(Test-ostream, "D")</span>
|
||||
<span id="L232" class="LineNr">232 </span> <span class="Comment"># push args</span>
|
||||
<span id="L233" class="LineNr">233 </span> 68/push "D"/imm32
|
||||
<span id="L234" class="LineNr">234 </span> 68/push Test-ostream/imm32
|
||||
<span id="L235" class="LineNr">235 </span> <span class="Comment"># call</span>
|
||||
<span id="L236" class="LineNr">236 </span> e8/call write/disp32
|
||||
<span id="L237" class="LineNr">237 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L238" class="LineNr">238 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L239" class="LineNr">239 </span> <span class="Comment"># check-ints-equal(*Test-ostream.data, 43/C 44/D 00 00, msg)</span>
|
||||
<span id="L240" class="LineNr">240 </span> <span class="Comment"># push args</span>
|
||||
<span id="L241" class="LineNr">241 </span> 68/push "F - test-write-appends"/imm32
|
||||
<span id="L242" class="LineNr">242 </span> 68/push 0x00004443/imm32/C-D
|
||||
<span id="L243" class="LineNr">243 </span> <span class="Comment"># push *Test-ostream.data</span>
|
||||
<span id="L244" class="LineNr">244 </span> b8/copy-to-EAX Test-ostream/imm32
|
||||
<span id="L245" class="LineNr">245 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EAX+8)</span>
|
||||
<span id="L246" class="LineNr">246 </span> <span class="Comment"># call</span>
|
||||
<span id="L247" class="LineNr">247 </span> e8/call check-ints-equal/disp32
|
||||
<span id="L248" class="LineNr">248 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L249" class="LineNr">249 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L250" class="LineNr">250 </span> <span class="Comment"># end</span>
|
||||
<span id="L251" class="LineNr">251 </span> c3/return
|
||||
<span id="L188" class="LineNr">188 </span> 68/push "F - test-write-appends"/imm32
|
||||
<span id="L189" class="LineNr">189 </span> 68/push 0x00004443/imm32/C-D
|
||||
<span id="L190" class="LineNr">190 </span> <span class="Comment"># push *Test-ostream.data</span>
|
||||
<span id="L191" class="LineNr">191 </span> b8/copy-to-EAX Test-ostream/imm32
|
||||
<span id="L192" class="LineNr">192 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EAX+8)</span>
|
||||
<span id="L193" class="LineNr">193 </span> <span class="Comment"># call</span>
|
||||
<span id="L194" class="LineNr">194 </span> e8/call check-ints-equal/disp32
|
||||
<span id="L195" class="LineNr">195 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L196" class="LineNr">196 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L197" class="LineNr">197 </span> <span class="Comment"># end</span>
|
||||
<span id="L198" class="LineNr">198 </span> c3/return
|
||||
</pre>
|
||||
</body>
|
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<pre id='vimCodeElement'>
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<span id="L1" class="LineNr"> 1 </span><span class="Comment"># stop: dependency-injected wrapper around the exit() syscall</span>
|
||||
<span id="L2" class="LineNr"> 2 </span><span class="Comment">#</span>
|
||||
<span id="L3" class="LineNr"> 3 </span><span class="Comment"># We'd like to be able to write tests for functions that call exit(), and to</span>
|
||||
<span id="L4" class="LineNr"> 4 </span><span class="Comment"># make assertions about whether they exit() or not in a given situation. To</span>
|
||||
<span id="L5" class="LineNr"> 5 </span><span class="Comment"># achieve this we'll call exit() via a smarter wrapper called 'stop'.</span>
|
||||
<span id="L6" class="LineNr"> 6 </span><span class="Comment">#</span>
|
||||
<span id="L7" class="LineNr"> 7 </span><span class="Comment"># In the context of a test, calling a function X that calls 'stop' (directly</span>
|
||||
<span id="L8" class="LineNr"> 8 </span><span class="Comment"># or through further intervening calls) will unwind the stack until X returns,</span>
|
||||
<span id="L9" class="LineNr"> 9 </span><span class="Comment"># so that we can say check any further assertions after the execution of X. To</span>
|
||||
<span id="L10" class="LineNr"> 10 </span><span class="Comment"># achieve this end, we'll pass the return address of X as a 'target' argument</span>
|
||||
<span id="L11" class="LineNr"> 11 </span><span class="Comment"># into X, plumbing it through to 'stop'. When 'stop' gets a non-null target it</span>
|
||||
<span id="L12" class="LineNr"> 12 </span><span class="Comment"># unwinds the stack until the target. If it gets a null target it calls</span>
|
||||
<span id="L13" class="LineNr"> 13 </span><span class="Comment"># exit().</span>
|
||||
<span id="L14" class="LineNr"> 14 </span><span class="Comment">#</span>
|
||||
<span id="L15" class="LineNr"> 15 </span><span class="Comment"># We'd also like to get the exit status out of 'stop', so we'll combine the</span>
|
||||
<span id="L16" class="LineNr"> 16 </span><span class="Comment"># input target with an output status parameter into a type called 'exit-descriptor'.</span>
|
||||
<span id="L17" class="LineNr"> 17 </span><span class="Comment">#</span>
|
||||
<span id="L18" class="LineNr"> 18 </span><span class="Comment"># So the exit-descriptor looks like this:</span>
|
||||
<span id="L19" class="LineNr"> 19 </span><span class="Comment"># target : address # input return address for 'stop' to unwind to</span>
|
||||
<span id="L20" class="LineNr"> 20 </span><span class="Comment"># value : int # output exit status stop was called with</span>
|
||||
<span id="L21" class="LineNr"> 21 </span><span class="Comment">#</span>
|
||||
<span id="L22" class="LineNr"> 22 </span><span class="Comment"># 'stop' thus takes two parameters: an exit-descriptor and the exit status.</span>
|
||||
<span id="L23" class="LineNr"> 23 </span><span class="Comment">#</span>
|
||||
<span id="L24" class="LineNr"> 24 </span><span class="Comment"># We won't bother cleaning up any other processor state besides the stack,</span>
|
||||
<span id="L25" class="LineNr"> 25 </span><span class="Comment"># such as registers. Only ESP will have a well-defined value after 'stop'</span>
|
||||
<span id="L26" class="LineNr"> 26 </span><span class="Comment"># returns. (This is a poor man's setjmp/longjmp, if you know what that is.)</span>
|
||||
<span id="L27" class="LineNr"> 27 </span>
|
||||
<span id="L28" class="LineNr"> 28 </span>== code
|
||||
<span id="L29" class="LineNr"> 29 </span>
|
||||
<span id="L30" class="LineNr"> 30 </span><span class="Comment"># instruction effective address operand displacement immediate</span>
|
||||
<span id="L31" class="LineNr"> 31 </span><span class="Comment"># op subop mod rm32 base index scale r32</span>
|
||||
<span id="L32" class="LineNr"> 32 </span><span class="Comment"># 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes</span>
|
||||
<span id="L33" class="LineNr"> 33 </span>
|
||||
<span id="L34" class="LineNr"> 34 </span><span class="Comment"># main: (manual test if this is the last file loaded)</span>
|
||||
<span id="L35" class="LineNr"> 35 </span><span class="CommentedCode">#? e8/call test-stop-skips-returns-on-exit/disp32</span>
|
||||
<span id="L36" class="LineNr"> 36 </span> e8/call run-tests/disp32 <span class="Comment"># 'run-tests' is a function created automatically by SubX. It calls all functions that start with 'test-'.</span>
|
||||
<span id="L37" class="LineNr"> 37 </span> <span class="Comment"># syscall(exit, Num-test-failures)</span>
|
||||
<span id="L38" class="LineNr"> 38 </span> 8b/copy 0/mod/indirect 5/rm32/.disp32 <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX Num-test-failures/disp32 <span class="Comment"># copy *Num-test-failures to EBX</span>
|
||||
<span id="L39" class="LineNr"> 39 </span> b8/copy-to-EAX 1/imm32
|
||||
<span id="L40" class="LineNr"> 40 </span> cd/syscall 0x80/imm8
|
||||
<span id="L41" class="LineNr"> 41 </span>
|
||||
<span id="L42" class="LineNr"> 42 </span><span class="Comment"># Configure an exit-descriptor for a call pushing 'nbytes' bytes of args to</span>
|
||||
<span id="L43" class="LineNr"> 43 </span><span class="Comment"># the stack.</span>
|
||||
<span id="L44" class="LineNr"> 44 </span><span class="Comment"># Ugly that we need to know the size of args, but so it goes.</span>
|
||||
<span id="L45" class="LineNr"> 45 </span>tailor-exit-descriptor: <span class="Comment"># ed : (address exit-descriptor), nbytes : int -> ()</span>
|
||||
<span id="L46" class="LineNr"> 46 </span> <span class="Comment"># prolog</span>
|
||||
<span id="L47" class="LineNr"> 47 </span> 55/push-EBP
|
||||
<span id="L48" class="LineNr"> 48 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span>
|
||||
<span id="L49" class="LineNr"> 49 </span> <span class="Comment"># save registers</span>
|
||||
<span id="L50" class="LineNr"> 50 </span> 50/push-EAX
|
||||
<span id="L51" class="LineNr"> 51 </span> 51/push-ECX
|
||||
<span id="L52" class="LineNr"> 52 </span> <span class="Comment"># EAX = nbytes</span>
|
||||
<span id="L53" class="LineNr"> 53 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+12) to EAX</span>
|
||||
<span id="L54" class="LineNr"> 54 </span> <span class="Comment"># Let X be the value of ESP in the caller, before the call to tailor-exit-descriptor.</span>
|
||||
<span id="L55" class="LineNr"> 55 </span> <span class="Comment"># The return address for a call in the caller's body will be at:</span>
|
||||
<span id="L56" class="LineNr"> 56 </span> <span class="Comment"># X-8 if the caller takes 4 bytes of args for the exit-descriptor (add 4 bytes for the return address)</span>
|
||||
<span id="L57" class="LineNr"> 57 </span> <span class="Comment"># X-12 if the caller takes 8 bytes of args</span>
|
||||
<span id="L58" class="LineNr"> 58 </span> <span class="Comment"># ..and so on</span>
|
||||
<span id="L59" class="LineNr"> 59 </span> <span class="Comment"># That's the value we need to return: X-nbytes-4</span>
|
||||
<span id="L60" class="LineNr"> 60 </span> <span class="Comment">#</span>
|
||||
<span id="L61" class="LineNr"> 61 </span> <span class="Comment"># However, we also need to account for the perturbance to ESP caused by the</span>
|
||||
<span id="L62" class="LineNr"> 62 </span> <span class="Comment"># call to tailor-exit-descriptor. It pushes 8 bytes of args followed by 4</span>
|
||||
<span id="L63" class="LineNr"> 63 </span> <span class="Comment"># bytes for the return address and 4 bytes to push EBP above.</span>
|
||||
<span id="L64" class="LineNr"> 64 </span> <span class="Comment"># So EBP at this point is X-16.</span>
|
||||
<span id="L65" class="LineNr"> 65 </span> <span class="Comment">#</span>
|
||||
<span id="L66" class="LineNr"> 66 </span> <span class="Comment"># So the return address for the next call in the caller is:</span>
|
||||
<span id="L67" class="LineNr"> 67 </span> <span class="Comment"># EBP+8 if the caller takes 4 bytes of args</span>
|
||||
<span id="L68" class="LineNr"> 68 </span> <span class="Comment"># EBP+4 if the caller takes 8 bytes of args</span>
|
||||
<span id="L69" class="LineNr"> 69 </span> <span class="Comment"># EBP if the caller takes 12 bytes of args</span>
|
||||
<span id="L70" class="LineNr"> 70 </span> <span class="Comment"># EBP-4 if the caller takes 16 bytes of args</span>
|
||||
<span id="L71" class="LineNr"> 71 </span> <span class="Comment"># ..and so on</span>
|
||||
<span id="L72" class="LineNr"> 72 </span> <span class="Comment"># That's EBP+12-nbytes.</span>
|
||||
<span id="L73" class="LineNr"> 73 </span> <span class="Comment"># option 1: 6 + 3 bytes</span>
|
||||
<span id="L74" class="LineNr"> 74 </span><span class="CommentedCode">#? 2d/subtract 3/mod/direct 0/rm32/EAX . . . . . 8/imm32 # subtract from EAX</span>
|
||||
<span id="L75" class="LineNr"> 75 </span><span class="CommentedCode">#? 8d/copy-address 0/mod/indirect 4/rm32/sib 5/base/EBP 0/index/EAX . 0/r32/EAX . . # copy EBP+EAX to EAX</span>
|
||||
<span id="L76" class="LineNr"> 76 </span> <span class="Comment"># option 2: 2 + 4 bytes</span>
|
||||
<span id="L77" class="LineNr"> 77 </span> f7 3/subop/negate 3/mod/direct 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># negate EAX</span>
|
||||
<span id="L78" class="LineNr"> 78 </span> 8d/copy-address 1/mod/*+disp8 4/rm32/sib 5/base/EBP 0/index/EAX <span class="Delimiter"> . </span> 0/r32/EAX 0xc/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy EBP+EAX+12 to EAX</span>
|
||||
<span id="L79" class="LineNr"> 79 </span> <span class="Comment"># copy EAX to ed->target</span>
|
||||
<span id="L80" class="LineNr"> 80 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EBP+8) to ECX</span>
|
||||
<span id="L81" class="LineNr"> 81 </span> 89/copy 0/mod/indirect 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EAX to *ECX</span>
|
||||
<span id="L82" class="LineNr"> 82 </span> <span class="Comment"># initialize ed->value</span>
|
||||
<span id="L83" class="LineNr"> 83 </span> c7/copy 1/mod/*+disp8 1/rm32/ECX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/disp8 0/imm32 <span class="Comment"># copy to *(ECX+4)</span>
|
||||
<span id="L84" class="LineNr"> 84 </span> <span class="Comment"># restore registers</span>
|
||||
<span id="L85" class="LineNr"> 85 </span> 59/pop-to-ECX
|
||||
<span id="L86" class="LineNr"> 86 </span> 58/pop-to-EAX
|
||||
<span id="L87" class="LineNr"> 87 </span> <span class="Comment"># epilog</span>
|
||||
<span id="L88" class="LineNr"> 88 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span>
|
||||
<span id="L89" class="LineNr"> 89 </span> 5d/pop-to-EBP
|
||||
<span id="L90" class="LineNr"> 90 </span> c3/return
|
||||
<span id="L91" class="LineNr"> 91 </span>
|
||||
<span id="L92" class="LineNr"> 92 </span>stop: <span class="Comment"># ed : (address exit-descriptor), value : int</span>
|
||||
<span id="L93" class="LineNr"> 93 </span> <span class="Comment"># no prolog; one way or another, we're going to clobber registers</span>
|
||||
<span id="L94" class="LineNr"> 94 </span> <span class="Comment"># EAX = ed</span>
|
||||
<span id="L95" class="LineNr"> 95 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+4) to EAX</span>
|
||||
<span id="L96" class="LineNr"> 96 </span> <span class="Comment"># exit(value) if ed->target == 0</span>
|
||||
<span id="L97" class="LineNr"> 97 </span> 81 7/subop/compare 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0/imm32 <span class="Comment"># compare *EAX</span>
|
||||
<span id="L98" class="LineNr"> 98 </span> 75/jump-if-not-equal $stop:fake/disp8
|
||||
<span id="L99" class="LineNr"> 99 </span> <span class="Comment"># syscall(exit, ed->value)</span>
|
||||
<span id="L100" class="LineNr">100 </span> 8b/copy 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 3/r32/EBX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(EAX+4) to EBX</span>
|
||||
<span id="L101" class="LineNr">101 </span> b8/copy-to-EAX 1/imm32
|
||||
<span id="L102" class="LineNr">102 </span> cd/syscall 0x80/imm8
|
||||
<span id="L103" class="LineNr">103 </span>$stop:fake:
|
||||
<span id="L104" class="LineNr">104 </span> <span class="Comment"># ed->value = value+1</span>
|
||||
<span id="L105" class="LineNr">105 </span> 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 1/r32/ECX 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy *(ESP+8) to ECX</span>
|
||||
<span id="L106" class="LineNr">106 </span> 41/inc-ECX
|
||||
<span id="L107" class="LineNr">107 </span> 89/copy 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 1/r32/ECX 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># copy ECX to *(EAX+4)</span>
|
||||
<span id="L108" class="LineNr">108 </span> <span class="Comment"># non-local jump to ed->target</span>
|
||||
<span id="L109" class="LineNr">109 </span> 8b/copy 0/mod/indirect 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy *EAX to ESP</span>
|
||||
<span id="L110" class="LineNr">110 </span> c3/return <span class="Comment"># doesn't return to caller</span>
|
||||
<span id="L111" class="LineNr">111 </span>
|
||||
<span id="L112" class="LineNr">112 </span>test-stop-skips-returns-on-exit:
|
||||
<span id="L113" class="LineNr">113 </span> <span class="Comment"># This looks like the standard prolog, but is here for different reasons.</span>
|
||||
<span id="L114" class="LineNr">114 </span> <span class="Comment"># A function calling 'stop' can't rely on EBP persisting past the call.</span>
|
||||
<span id="L115" class="LineNr">115 </span> <span class="Comment">#</span>
|
||||
<span id="L116" class="LineNr">116 </span> <span class="Comment"># Use EBP here as a stable base to refer to locals and arguments from in the</span>
|
||||
<span id="L117" class="LineNr">117 </span> <span class="Comment"># presence of push/pop/call instructions.</span>
|
||||
<span id="L118" class="LineNr">118 </span> <span class="Comment"># *Don't* use EBP as a way to restore ESP.</span>
|
||||
<span id="L119" class="LineNr">119 </span> 55/push-EBP
|
||||
<span id="L120" class="LineNr">120 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span>
|
||||
<span id="L121" class="LineNr">121 </span> <span class="Comment"># Make room for an exit descriptor on the stack. That's almost always the</span>
|
||||
<span id="L122" class="LineNr">122 </span> <span class="Comment"># right place for it, available only as long as it's legal to use. Once this</span>
|
||||
<span id="L123" class="LineNr">123 </span> <span class="Comment"># containing function returns we'll need a new exit descriptor.</span>
|
||||
<span id="L124" class="LineNr">124 </span> <span class="Comment"># var ed/EAX : (address exit-descriptor)</span>
|
||||
<span id="L125" class="LineNr">125 </span> 81 5/subop/subtract 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># subtract from ESP</span>
|
||||
<span id="L126" class="LineNr">126 </span> 8d/copy-address 0/mod/indirect 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> 0/r32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EAX</span>
|
||||
<span id="L127" class="LineNr">127 </span> <span class="Comment"># Size the exit-descriptor precisely for the next call below, to _test-stop-1.</span>
|
||||
<span id="L128" class="LineNr">128 </span> <span class="Comment"># tailor-exit-descriptor(ed, 4)</span>
|
||||
<span id="L129" class="LineNr">129 </span> <span class="Comment"># push args</span>
|
||||
<span id="L130" class="LineNr">130 </span> 68/push 4/imm32/nbytes-of-args-for-_test-stop-1
|
||||
<span id="L131" class="LineNr">131 </span> 50/push-EAX
|
||||
<span id="L132" class="LineNr">132 </span> <span class="Comment"># call</span>
|
||||
<span id="L133" class="LineNr">133 </span> e8/call tailor-exit-descriptor/disp32
|
||||
<span id="L134" class="LineNr">134 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L135" class="LineNr">135 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L136" class="LineNr">136 </span> <span class="Comment"># call _test-stop-1(ed)</span>
|
||||
<span id="L137" class="LineNr">137 </span> <span class="Comment"># push arg</span>
|
||||
<span id="L138" class="LineNr">138 </span> 50/push-EAX
|
||||
<span id="L139" class="LineNr">139 </span> <span class="Comment"># call</span>
|
||||
<span id="L140" class="LineNr">140 </span> e8/call _test-stop-1/disp32
|
||||
<span id="L141" class="LineNr">141 </span> <span class="SalientComment">## registers except ESP may be clobbered at this point</span>
|
||||
<span id="L142" class="LineNr">142 </span> <span class="Comment"># restore arg</span>
|
||||
<span id="L143" class="LineNr">143 </span> 58/pop-to-EAX
|
||||
<span id="L144" class="LineNr">144 </span> <span class="Comment"># check that _test-stop-1 tried to call exit(1)</span>
|
||||
<span id="L145" class="LineNr">145 </span> <span class="Comment"># check-ints-equal(ed->value, 2, msg) # i.e. stop was called with value 1</span>
|
||||
<span id="L146" class="LineNr">146 </span> <span class="Comment"># push args</span>
|
||||
<span id="L147" class="LineNr">147 </span> 68/push "F - test-stop-skips-returns-on-exit"/imm32
|
||||
<span id="L148" class="LineNr">148 </span> 68/push 2/imm32
|
||||
<span id="L149" class="LineNr">149 </span> <span class="Comment"># push ed->value</span>
|
||||
<span id="L150" class="LineNr">150 </span> ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EAX+4)</span>
|
||||
<span id="L151" class="LineNr">151 </span> <span class="Comment"># call</span>
|
||||
<span id="L152" class="LineNr">152 </span> e8/call check-ints-equal/disp32
|
||||
<span id="L153" class="LineNr">153 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L154" class="LineNr">154 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L155" class="LineNr">155 </span> <span class="Comment"># epilog</span>
|
||||
<span id="L156" class="LineNr">156 </span> 5d/pop-to-EBP
|
||||
<span id="L157" class="LineNr">157 </span> <span class="Comment"># don't restore ESP from EBP; manually reclaim locals</span>
|
||||
<span id="L158" class="LineNr">158 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L159" class="LineNr">159 </span> c3/return
|
||||
<span id="L160" class="LineNr">160 </span>
|
||||
<span id="L161" class="LineNr">161 </span>_test-stop-1: <span class="Comment"># ed : (address exit-descriptor)</span>
|
||||
<span id="L162" class="LineNr">162 </span> <span class="Comment"># prolog</span>
|
||||
<span id="L163" class="LineNr">163 </span> 55/push-EBP
|
||||
<span id="L164" class="LineNr">164 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span>
|
||||
<span id="L165" class="LineNr">165 </span> <span class="Comment"># _test-stop-2(ed)</span>
|
||||
<span id="L166" class="LineNr">166 </span> <span class="Comment"># push arg</span>
|
||||
<span id="L167" class="LineNr">167 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+8)</span>
|
||||
<span id="L168" class="LineNr">168 </span> <span class="Comment"># call</span>
|
||||
<span id="L169" class="LineNr">169 </span> e8/call _test-stop-2/disp32
|
||||
<span id="L170" class="LineNr">170 </span> <span class="SalientComment">## should never get past this point</span>
|
||||
<span id="L171" class="LineNr">171 </span> <span class="Comment"># discard arg</span>
|
||||
<span id="L172" class="LineNr">172 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L173" class="LineNr">173 </span> <span class="Comment"># signal test failed: check-ints-equal(1, 0, msg)</span>
|
||||
<span id="L174" class="LineNr">174 </span> <span class="Comment"># push args</span>
|
||||
<span id="L175" class="LineNr">175 </span> 68/push "F - test-stop-skips-returns-on-exit"/imm32
|
||||
<span id="L176" class="LineNr">176 </span> 68/push 0/imm32
|
||||
<span id="L177" class="LineNr">177 </span> 68/push 1/imm32
|
||||
<span id="L178" class="LineNr">178 </span> <span class="Comment"># call</span>
|
||||
<span id="L179" class="LineNr">179 </span> e8/call check-ints-equal/disp32
|
||||
<span id="L180" class="LineNr">180 </span> <span class="Comment"># discard args</span>
|
||||
<span id="L181" class="LineNr">181 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 0xc/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L182" class="LineNr">182 </span> <span class="Comment"># epilog</span>
|
||||
<span id="L183" class="LineNr">183 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span>
|
||||
<span id="L184" class="LineNr">184 </span> 5d/pop-to-EBP
|
||||
<span id="L185" class="LineNr">185 </span> c3/return
|
||||
<span id="L186" class="LineNr">186 </span>
|
||||
<span id="L187" class="LineNr">187 </span>_test-stop-2: <span class="Comment"># ed : (address exit-descriptor)</span>
|
||||
<span id="L188" class="LineNr">188 </span> <span class="Comment"># prolog</span>
|
||||
<span id="L189" class="LineNr">189 </span> 55/push-EBP
|
||||
<span id="L190" class="LineNr">190 </span> 89/copy 3/mod/direct 5/rm32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/r32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy ESP to EBP</span>
|
||||
<span id="L191" class="LineNr">191 </span> <span class="Comment"># call stop(ed, 1)</span>
|
||||
<span id="L192" class="LineNr">192 </span> <span class="Comment"># push args</span>
|
||||
<span id="L193" class="LineNr">193 </span> 68/push 1/imm32
|
||||
<span id="L194" class="LineNr">194 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(EBP+8)</span>
|
||||
<span id="L195" class="LineNr">195 </span> <span class="Comment"># call</span>
|
||||
<span id="L196" class="LineNr">196 </span> e8/call stop/disp32
|
||||
<span id="L197" class="LineNr">197 </span> <span class="SalientComment">## should never get past this point</span>
|
||||
<span id="L198" class="LineNr">198 </span> <span class="Comment"># epilog</span>
|
||||
<span id="L199" class="LineNr">199 </span> 89/copy 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 5/r32/EBP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Comment"># copy EBP to ESP</span>
|
||||
<span id="L200" class="LineNr">200 </span> 5d/pop-to-EBP
|
||||
<span id="L201" class="LineNr">201 </span> c3/return
|
||||
</pre>
|
||||
</body>
|
||||
</html>
|
||||
<!-- vim: set foldmethod=manual : -->
|
||||
|
|
@ -106,36 +106,36 @@ if ('onhashchange' in window) {
|
|||
<span id="L50" class="LineNr">50 </span>
|
||||
<span id="L51" class="LineNr">51 </span><span class="Comment"># print out "Error: #{s} expected\n" to stderr</span>
|
||||
<span id="L52" class="LineNr">52 </span>error: <span class="Comment"># s : (address array byte) -> <void></span>
|
||||
<span id="L53" class="LineNr">53 </span> <span class="Comment"># _write(2/stderr, "Error: ")</span>
|
||||
<span id="L53" class="LineNr">53 </span> <span class="Comment"># write(2/stderr, "Error: ")</span>
|
||||
<span id="L54" class="LineNr">54 </span> <span class="Comment"># push args</span>
|
||||
<span id="L55" class="LineNr">55 </span> 68/push "Error: "/imm32
|
||||
<span id="L56" class="LineNr">56 </span> 68/push 2/imm32/stderr
|
||||
<span id="L57" class="LineNr">57 </span> <span class="Comment"># call</span>
|
||||
<span id="L58" class="LineNr">58 </span> e8/call _write/disp32
|
||||
<span id="L58" class="LineNr">58 </span> e8/call write/disp32
|
||||
<span id="L59" class="LineNr">59 </span> <span class="Comment"># discard arg</span>
|
||||
<span id="L60" class="LineNr">60 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L61" class="LineNr">61 </span> <span class="Comment"># _write(2/stderr, s)</span>
|
||||
<span id="L61" class="LineNr">61 </span> <span class="Comment"># write(2/stderr, s)</span>
|
||||
<span id="L62" class="LineNr">62 </span> <span class="Comment"># push args</span>
|
||||
<span id="L63" class="LineNr">63 </span> ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 4/disp8 <span class="Delimiter"> . </span> <span class="Comment"># push *(ESP+4)</span>
|
||||
<span id="L64" class="LineNr">64 </span> 68/push 2/imm32/stderr
|
||||
<span id="L65" class="LineNr">65 </span> <span class="Comment"># call</span>
|
||||
<span id="L66" class="LineNr">66 </span> e8/call _write/disp32
|
||||
<span id="L66" class="LineNr">66 </span> e8/call write/disp32
|
||||
<span id="L67" class="LineNr">67 </span> <span class="Comment"># discard arg</span>
|
||||
<span id="L68" class="LineNr">68 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L69" class="LineNr">69 </span> <span class="Comment"># _write(2/stderr, " expected")</span>
|
||||
<span id="L69" class="LineNr">69 </span> <span class="Comment"># write(2/stderr, " expected")</span>
|
||||
<span id="L70" class="LineNr">70 </span> <span class="Comment"># push args</span>
|
||||
<span id="L71" class="LineNr">71 </span> 68/push " expected"/imm32
|
||||
<span id="L72" class="LineNr">72 </span> 68/push 2/imm32/stderr
|
||||
<span id="L73" class="LineNr">73 </span> <span class="Comment"># call</span>
|
||||
<span id="L74" class="LineNr">74 </span> e8/call _write/disp32
|
||||
<span id="L74" class="LineNr">74 </span> e8/call write/disp32
|
||||
<span id="L75" class="LineNr">75 </span> <span class="Comment"># discard arg</span>
|
||||
<span id="L76" class="LineNr">76 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L77" class="LineNr">77 </span> <span class="Comment"># _write(2/stderr, "\n")</span>
|
||||
<span id="L77" class="LineNr">77 </span> <span class="Comment"># write(2/stderr, "\n")</span>
|
||||
<span id="L78" class="LineNr">78 </span> <span class="Comment"># push args</span>
|
||||
<span id="L79" class="LineNr">79 </span> 68/push Newline/imm32
|
||||
<span id="L80" class="LineNr">80 </span> 68/push 2/imm32/stderr
|
||||
<span id="L81" class="LineNr">81 </span> <span class="Comment"># call</span>
|
||||
<span id="L82" class="LineNr">82 </span> e8/call _write/disp32
|
||||
<span id="L82" class="LineNr">82 </span> e8/call write/disp32
|
||||
<span id="L83" class="LineNr">83 </span> <span class="Comment"># discard arg</span>
|
||||
<span id="L84" class="LineNr">84 </span> 81 0/subop/add 3/mod/direct 4/rm32/ESP <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> <span class="Delimiter"> . </span> 8/imm32 <span class="Comment"># add to ESP</span>
|
||||
<span id="L85" class="LineNr">85 </span> <span class="Comment"># end</span>
|
||||
|
|
|
|||
Loading…
Reference in New Issue